3(x+4)+7=40

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Solution for 3(x+4)+7=40 equation:


Simplifying
3(x + 4) + 7 = 40

Reorder the terms:
3(4 + x) + 7 = 40
(4 * 3 + x * 3) + 7 = 40
(12 + 3x) + 7 = 40

Reorder the terms:
12 + 7 + 3x = 40

Combine like terms: 12 + 7 = 19
19 + 3x = 40

Solving
19 + 3x = 40

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 + 3x = 40 + -19

Combine like terms: 19 + -19 = 0
0 + 3x = 40 + -19
3x = 40 + -19

Combine like terms: 40 + -19 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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