2x-5(x+4)=8-7

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Solution for 2x-5(x+4)=8-7 equation:


Simplifying
2x + -5(x + 4) = 8 + -7

Reorder the terms:
2x + -5(4 + x) = 8 + -7
2x + (4 * -5 + x * -5) = 8 + -7
2x + (-20 + -5x) = 8 + -7

Reorder the terms:
-20 + 2x + -5x = 8 + -7

Combine like terms: 2x + -5x = -3x
-20 + -3x = 8 + -7

Combine like terms: 8 + -7 = 1
-20 + -3x = 1

Solving
-20 + -3x = 1

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '20' to each side of the equation.
-20 + 20 + -3x = 1 + 20

Combine like terms: -20 + 20 = 0
0 + -3x = 1 + 20
-3x = 1 + 20

Combine like terms: 1 + 20 = 21
-3x = 21

Divide each side by '-3'.
x = -7

Simplifying
x = -7

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