7x+13+3x+12=3x+4

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Solution for 7x+13+3x+12=3x+4 equation: 


Simplifying
7x + 13 + 3x + 12 = 3x + 4

Reorder the terms:
13 + 12 + 7x + 3x = 3x + 4

Combine like terms: 13 + 12 = 25
25 + 7x + 3x = 3x + 4

Combine like terms: 7x + 3x = 10x
25 + 10x = 3x + 4

Reorder the terms:
25 + 10x = 4 + 3x

Solving
25 + 10x = 4 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
25 + 10x + -3x = 4 + 3x + -3x

Combine like terms: 10x + -3x = 7x
25 + 7x = 4 + 3x + -3x

Combine like terms: 3x + -3x = 0
25 + 7x = 4 + 0
25 + 7x = 4

Add '-25' to each side of the equation.
25 + -25 + 7x = 4 + -25

Combine like terms: 25 + -25 = 0
0 + 7x = 4 + -25
7x = 4 + -25

Combine like terms: 4 + -25 = -21
7x = -21

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

Simplifying
x = -3

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