15+3=9x

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Solution for 15+3=9x equation:


Simplifying
15 + 3 = 9x

Combine like terms: 15 + 3 = 18
18 = 9x

Solving
18 = 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
18 + -9x = 9x + -9x

Combine like terms: 9x + -9x = 0
18 + -9x = 0

Add '-18' to each side of the equation.
18 + -18 + -9x = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -9x = 0 + -18
-9x = 0 + -18

Combine like terms: 0 + -18 = -18
-9x = -18

Divide each side by '-9'.
x = 2

Simplifying
x = 2

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