5x+9=3(x+7)

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Solution for 5x+9=3(x+7) equation:


Simplifying
5x + 9 = 3(x + 7)

Reorder the terms:
9 + 5x = 3(x + 7)

Reorder the terms:
9 + 5x = 3(7 + x)
9 + 5x = (7 * 3 + x * 3)
9 + 5x = (21 + 3x)

Solving
9 + 5x = 21 + 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.
9 + 5x + -3x = 21 + 3x + -3x

Combine like terms: 5x + -3x = 2x
9 + 2x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
9 + 2x = 21 + 0
9 + 2x = 21

Add '-9' to each side of the equation.
9 + -9 + 2x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = 21 + -9
2x = 21 + -9

Combine like terms: 21 + -9 = 12
2x = 12

Divide each side by '2'.
x = 6

Simplifying
x = 6

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