7x-9=5(x+3)

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


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

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

Reorder the terms:
-9 + 7x = 5(3 + x)
-9 + 7x = (3 * 5 + x * 5)
-9 + 7x = (15 + 5x)

Solving
-9 + 7x = 15 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-9 + 7x + -5x = 15 + 5x + -5x

Combine like terms: 7x + -5x = 2x
-9 + 2x = 15 + 5x + -5x

Combine like terms: 5x + -5x = 0
-9 + 2x = 15 + 0
-9 + 2x = 15

Add '9' to each side of the equation.
-9 + 9 + 2x = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 2x = 15 + 9
2x = 15 + 9

Combine like terms: 15 + 9 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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