7x-(-13+4x)+12=13

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Solution for 7x-(-13+4x)+12=13 equation:


Simplifying
7x + -1(-13 + 4x) + 12 = 13
7x + (-13 * -1 + 4x * -1) + 12 = 13
7x + (13 + -4x) + 12 = 13

Reorder the terms:
13 + 12 + 7x + -4x = 13

Combine like terms: 13 + 12 = 25
25 + 7x + -4x = 13

Combine like terms: 7x + -4x = 3x
25 + 3x = 13

Solving
25 + 3x = 13

Solving for variable 'x'.

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

Add '-25' to each side of the equation.
25 + -25 + 3x = 13 + -25

Combine like terms: 25 + -25 = 0
0 + 3x = 13 + -25
3x = 13 + -25

Combine like terms: 13 + -25 = -12
3x = -12

Divide each side by '3'.
x = -4

Simplifying
x = -4

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