Question

1) -11z+52=41z 2) 14(3x-5)=19x-1 3) 88+100b=87+b 4) 78+100x=-177+x 5) 38-5a=34-4a 6) 26-4z=28-2z 7) 10+9a=26+a 8) -20(-10x+4)=120

Answer 1

Ответ:

Пошаговое объяснение:

1) -11z+52=41z

-11z-41z=-52

-52z=-52

z=-52:(-52)

z=1

2) 14(3x-5)=19x-1

42х-70=19х-1

42х-19х=70-1

23х=69

х=69:23

х=3

3) 88+100b=87+b

100b-b=87-88

99b=-1

b=-1/99

4) 78+100x=-177+x

100x-x=-177-78

99x=-255

x=-255/99=-2 19/33

5) 38-5a=34-4a

4a-5a=34-38

-a=-4

a=4

6) 26-4z=28-2z

2z-4z=28-26

-2z=2

z=2:(-2)

z=-1

7) 10+9a=26+a

9а-а=26-10

8а=16

а=16:8

а=2

8) -20(-10x+4)=120

-10х+4=120:(-20)

-10х+4=-6

-10х=-6-4

-10х=-10

х=-10:(-10)

х=1

Answer 2

1. -11z + 52 = 41z First, we want to isolate z to one side of the equation. To do this, we can subtract 52 from both sides: -11z + 52 - 52 = 41z - 52 -11z = 41z - 52 Next, we can subtract 41z from both sides: -11z - 41z = -52 -52z = -52 Finally, we can solve for z by dividing both sides by -52: z = 1

2. 14(3x - 5) = 19x - 1 First, we can distribute the 14 on the left side: 42x - 70 = 19x - 1 Next, we want to isolate x to one side of the equation. To do this, we can subtract 19x from both sides: 42x - 19x - 70 = -1 23x - 70 = -1 Then, we can add 70 to both sides: 23x = 69 Finally, we can solve for x by dividing both sides by 23: x = 3

3. 88 + 100b = 87 + b First, we can simplify by subtracting 87 from both sides: 88 + 100b - 87 = b 100b + 1 = b

4. 78 + 100x = -177 + x First, we want to isolate x to one side of the equation. To do this, we can subtract 78 from both sides and add 177 to both sides: 100x - x = -177 - 78 99x = -255 Finally, we can solve for x by dividing both sides by 99: x = -255/99

5. 38 - 5a = 34 - 4a First, we can simplify by subtracting 34 from both sides: 38 - 34 - 5a = -4a 4 - 5a = -4a Then, we can add 5a to both sides: 4 = a

6. 26 - 4z = 28 - 2z First, we can simplify by adding 4z to both sides: 26 = 28 + 2z - 4z 26 = 28 - 2z Next, we can subtract 28 from both sides: -2 = -2z Finally, we can solve for z by dividing both sides by -2: z = 1

7. 10 + 9a = 26 + a First, we want to isolate a to one side of the equation. To do this, we can subtract a from both sides: 10 + 8a = 26 Then, we can subtract 10 from both sides: 8a = 16 Finally, we can solve for a by dividing both sides by 8: a = 2

8. -20(-10x + 4) = 120 First, we can simplify by distributing the -20 on the left side: 200x - 80 = 120 Next, we can add 80 to both sides: 200x = 200 Finally, we can solve for x by dividing both sides by 200: x = 1/10