Question

Решите уравнения 1)8x-3x-7x=12 2)x-52x+73x-132=0 3)-5x+19-12x+15=0 4)25x-74x-156+10x=0 5)3x-25x+3+2x=-137 6)-28-3x-4x+15=36

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Ответ:

Пошаговое объяснение:

Answer 3

1. 8x - 3x - 7x = 12

Combine like terms: -2x = 12

Divide both sides by -2: x = -6

2. x - 52x + 73x - 132 = 0

Combine like terms: 22x - 132 = 0

Add 132 to both sides: 22x = 132

Divide both sides by 22: x = 6

3. -5x + 19 - 12x + 15 = 0

Combine like terms: -17x + 34 = 0

Subtract 34 from both sides: -17x = -34

Divide both sides by -17: x = 2

4. 25x - 74x - 156 + 10x = 0

Combine like terms: -49x - 156 = 0

Add 156 to both sides: -49x = 156

Divide both sides by -49: x = -3

5. 3x - 25x + 3 + 2x = -137

Combine like terms: -20x + 3 + 2x = -137

Simplify: -18x + 3 = -137

Subtract 3 from both sides: -18x = -140

Divide both sides by -18: x = 7.78 (rounded to two decimal places)

6. -28 - 3x - 4x + 15 = 36

Combine like terms: -7x - 13 = 36

Add 13 to both sides: -7x = 49

Divide both sides by -7: x = -7