3(x+7)+x+3=18

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Solution for 3(x+7)+x+3=18 equation:


Simplifying
3(x + 7) + x + 3 = 18

Reorder the terms:
3(7 + x) + x + 3 = 18
(7 * 3 + x * 3) + x + 3 = 18
(21 + 3x) + x + 3 = 18

Reorder the terms:
21 + 3 + 3x + x = 18

Combine like terms: 21 + 3 = 24
24 + 3x + x = 18

Combine like terms: 3x + x = 4x
24 + 4x = 18

Solving
24 + 4x = 18

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + 4x = 18 + -24

Combine like terms: 24 + -24 = 0
0 + 4x = 18 + -24
4x = 18 + -24

Combine like terms: 18 + -24 = -6
4x = -6

Divide each side by '4'.
x = -1.5

Simplifying
x = -1.5

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