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3 years ago

–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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