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Serggg [28]
3 years ago
9

–12(x + 3) - 4(5 - 2x) = 20

Mathematics
2 answers:
bekas [8.4K]3 years ago
8 0
-12x -36 -20 +8x = 20
-12x + 8x = 20 + 36 + 20
-4x = 76
x = -19
12345 [234]3 years ago
7 0

Answer:

x = -19

Step-by-step explanation:

1. make parentheses disappeared using distribution law.

- 12x - 36  - 20 + 8x = 20

2. sum up b numbers and x

- 4x - 56 = 20

3. separate x and number to two sides of the equation

- 4x = 76

4. both side divided by -4

x =  - 19

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