4(x+7)-9=31

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Solution for 4(x+7)-9=31 equation:


Simplifying
4(x + 7) + -9 = 31

Reorder the terms:
4(7 + x) + -9 = 31
(7 * 4 + x * 4) + -9 = 31
(28 + 4x) + -9 = 31

Reorder the terms:
28 + -9 + 4x = 31

Combine like terms: 28 + -9 = 19
19 + 4x = 31

Solving
19 + 4x = 31

Solving for variable 'x'.

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

Add '-19' to each side of the equation.
19 + -19 + 4x = 31 + -19

Combine like terms: 19 + -19 = 0
0 + 4x = 31 + -19
4x = 31 + -19

Combine like terms: 31 + -19 = 12
4x = 12

Divide each side by '4'.
x = 3

Simplifying
x = 3

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