3(x+5)+x=7

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


Simplifying
3(x + 5) + x = 7

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

Combine like terms: 3x + x = 4x
15 + 4x = 7

Solving
15 + 4x = 7

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 4x = 7 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 7 + -15
4x = 7 + -15

Combine like terms: 7 + -15 = -8
4x = -8

Divide each side by '4'.
x = -2

Simplifying
x = -2

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