3x-15=5(x-7)+4

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Solution for 3x-15=5(x-7)+4 equation:


Simplifying
3x + -15 = 5(x + -7) + 4

Reorder the terms:
-15 + 3x = 5(x + -7) + 4

Reorder the terms:
-15 + 3x = 5(-7 + x) + 4
-15 + 3x = (-7 * 5 + x * 5) + 4
-15 + 3x = (-35 + 5x) + 4

Reorder the terms:
-15 + 3x = -35 + 4 + 5x

Combine like terms: -35 + 4 = -31
-15 + 3x = -31 + 5x

Solving
-15 + 3x = -31 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-15 + 3x + -5x = -31 + 5x + -5x

Combine like terms: 3x + -5x = -2x
-15 + -2x = -31 + 5x + -5x

Combine like terms: 5x + -5x = 0
-15 + -2x = -31 + 0
-15 + -2x = -31

Add '15' to each side of the equation.
-15 + 15 + -2x = -31 + 15

Combine like terms: -15 + 15 = 0
0 + -2x = -31 + 15
-2x = -31 + 15

Combine like terms: -31 + 15 = -16
-2x = -16

Divide each side by '-2'.
x = 8

Simplifying
x = 8

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