7(x+5)-4=12(x-7)

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Solution for 7(x+5)-4=12(x-7) equation:


Simplifying
7(x + 5) + -4 = 12(x + -7)

Reorder the terms:
7(5 + x) + -4 = 12(x + -7)
(5 * 7 + x * 7) + -4 = 12(x + -7)
(35 + 7x) + -4 = 12(x + -7)

Reorder the terms:
35 + -4 + 7x = 12(x + -7)

Combine like terms: 35 + -4 = 31
31 + 7x = 12(x + -7)

Reorder the terms:
31 + 7x = 12(-7 + x)
31 + 7x = (-7 * 12 + x * 12)
31 + 7x = (-84 + 12x)

Solving
31 + 7x = -84 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
31 + 7x + -12x = -84 + 12x + -12x

Combine like terms: 7x + -12x = -5x
31 + -5x = -84 + 12x + -12x

Combine like terms: 12x + -12x = 0
31 + -5x = -84 + 0
31 + -5x = -84

Add '-31' to each side of the equation.
31 + -31 + -5x = -84 + -31

Combine like terms: 31 + -31 = 0
0 + -5x = -84 + -31
-5x = -84 + -31

Combine like terms: -84 + -31 = -115
-5x = -115

Divide each side by '-5'.
x = 23

Simplifying
x = 23

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