Question

Реши уравнения (х+58)-37 = 91                                                                                                                69- (у-28) =13 321 + (х + 13) =450                                                                                                       204 - (х + 29) = 100                                                                                                         (х - 23 ) х 14 = 56                                                                                                          205 : ( у - 27 ) =41                                                                                                        89 х (b + 13) =7120

Answer 1

(Х+58)-37=51 (Х+58)=51+37 (Х+58)=88 Х=88-58 Х=30

Answer 2

(Х+58)-37=91          69-(у-28)=13 Х+58=91+37            у-28=69-13 Х+58=128                у-28=56 Х=128-58                 у=55+28 Х=70                        у=83 (70+58)-37=91         69-(83-28)=13 91=91                        13=13     321+(х+13)=450        204-(х+29)=100 Х+13=450-321          х+29=204-100 Х+13=129                  х+29=104 Х=129-13                   х=104-29 Х=116                         х=75 321+(116+13)=450      204-(75+29)=100 450=450                   100=100  (Х-23)×14=56             205÷(у-27)=41 Х-23=56÷14               у-27=205÷41 Х-23=4                       у-27=5 Х=4+23                      у=5+27 Х=27                          у=32 (27-23)×14=56           205÷(32-27)=41   56=56                        41=41   89×(b+13)=7120 b+13=7120÷89 b+13=80 b=80-13 b=67 89×(67+13)=7120 7120=7120

Answer 3

To solve the given equations, we need to find the values of the variables x and y. Let's go through each equation one by one and find their solutions:

1. (x + 58) - 37 = 91 First, simplify the left side of the equation: x + 58 - 37 = 91 x + 21 = 91 Next, isolate x by moving 21 to the other side of the equation: x = 91 - 21 x = 70

2. 69 - (y - 28) = 13 First, simplify the expression inside the parentheses: 69 - y + 28 = 13 Next, combine like terms: 97 - y = 13 Now, isolate y by moving 97 to the other side of the equation: -y = 13 - 97 -y = -84 Finally, divide by -1 to find y: y = 84

3. 321 + (x + 13) = 450 First, simplify the expression inside the parentheses: 321 + x + 13 = 450 Next, combine like terms: x + 334 = 450 Now, isolate x by moving 334 to the other side of the equation: x = 450 - 334 x = 116

4. 204 - (x + 29) = 100 First, simplify the expression inside the parentheses: 204 - x - 29 = 100 Next, combine like terms: 175 - x = 100 Now, isolate x by moving 175 to the other side of the equation: x = 175 - 100 x = 75

5. (x - 23) * 14 = 56 First, simplify the left side of the equation: 14x - 322 = 56 Next, isolate x by moving -322 to the other side of the equation: 14x = 56 + 322 14x = 378 Finally, divide by 14 to find x: x = 378 / 14 x = 27

6. 205 / (y - 27) = 41 First, isolate y - 27 by multiplying both sides by (y - 27): 205 = 41 * (y - 27) Next, divide both sides by 41: (y - 27) = 205 / 41 (y - 27) = 5 Now, isolate y by moving 27 to the other side of the equation: y = 5 + 27 y = 32

7. 89 * (b + 13) = 7120 First, isolate b + 13 by dividing both sides by 89: (b + 13) = 7120 / 89 (b + 13) = 80 Now, isolate b by moving 13 to the other side of the equation: b = 80 - 13 b = 67

So, the solutions to the given equations are: x = 70 y = 84 x = 116 x = 75 x = 27 y = 32 b = 67