Question

ДАЮ 45 БАЛЛОВ    1)(39+x)-84=78 3)(600-x)-92=126 4)253-(x-459)=138 2)(x-83)+316=425 5)502-(217-x)421 3)(600-x)-92=126 6)871-(x+157)=385 4)(у-164)+308=500 5)(942-a)-126=254 6)(801-b)-92=126 7)475-(671)=325 8)972(у-504)=284 9)403-(634-а)=366 10)643-(581-b)=292 11)987-(х+364)=519 12)3128-(м+425)=1509 

Answer 1

Пишите примеры полностью

Answer 2

To solve these equations, we'll go through them one by one and find the values of the variables (x, y, a, b, etc.).

1. (39 + x) - 84 = 78

Let's simplify the equation:

39 + x - 84 = 78

Now, isolate the variable x:

x - 45 = 78

Add 45 to both sides:

x = 78 + 45

x = 123

2. (x - 83) + 316 = 425

Let's simplify the equation:

x - 83 + 316 = 425

Now, isolate the variable x:

x + 233 = 425

Subtract 233 from both sides:

x = 425 - 233

x = 192

3. (600 - x) - 92 = 126

Let's simplify the equation:

600 - x - 92 = 126

Now, isolate the variable x:

• x = 126 + 92 - 600

• x = -382

Divide by -1 to get the positive value of x:

x = 382

4. (y - 164) + 308 = 500

Let's simplify the equation:

y - 164 + 308 = 500

Now, isolate the variable y:

y + 144 = 500

Subtract 144 from both sides:

y = 500 - 144

y = 356

5. (942 - a) - 126 = 254

Let's simplify the equation:

942 - a - 126 = 254

Now, isolate the variable a:

• a = 254 + 126 - 942

• a = -562

Divide by -1 to get the positive value of a:

a = 562

6. (801 - b) - 92 = 126

Let's simplify the equation:

801 - b - 92 = 126

Now, isolate the variable b:

• b = 126 + 92 - 801

• b = -583

Divide by -1 to get the positive value of b:

b = 583

7. 475 - 671 = 325

This is not an equation, it's a subtraction. The result is:

475 - 671 = -196

8. 972(y - 504) = 284

Let's solve for y:

Divide both sides by 972:

y - 504 = 284 / 972

y - 504 = 0.292, approximately

Now, add 504 to both sides:

y = 504 + 0.292

y = 504.292, approximately

9. 403 - (634 - a) = 366

Let's simplify the equation:

403 - 634 + a = 366

Now, isolate the variable a:

a = 366 + 634 - 403

a = 597

10. 643 - (581 - b) = 292

Let's simplify the equation:

643 - 581 + b = 292

Now, isolate the variable b:

b = 292 + 581 - 643

b = 230

11. 987 - (x + 364) = 519

Let's simplify the equation:

987 - x - 364 = 519

Now, isolate the variable x:

• x = 519 + 364 - 987

• x = -104

Divide by -1 to get the positive value of x:

x = 104

12. 3128 - (m + 425) = 1509

Let's simplify the equation:

3128 - m - 425 = 1509

Now, isolate the variable m:

• m = 1509 + 425 - 3128

• m = -1194

Divide by -1 to get the positive value of m:

m = 1194

So, the solutions to the given equations are:

1. x = 123
2. x = 192
3. x = 382
4. y = 356
5. a = 562
6. b = 583
7. -196 (not an equation)
8. y = 504.292 (approximately)
9. a = 597
10. b = 230
11. x = 104
12. m = 1194