15=7x-3-3x

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Solution for 15=7x-3-3x equation:


Simplifying
15 = 7x + -3 + -3x

Reorder the terms:
15 = -3 + 7x + -3x

Combine like terms: 7x + -3x = 4x
15 = -3 + 4x

Solving
15 = -3 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
15 + -4x = -3 + 4x + -4x

Combine like terms: 4x + -4x = 0
15 + -4x = -3 + 0
15 + -4x = -3

Add '-15' to each side of the equation.
15 + -15 + -4x = -3 + -15

Combine like terms: 15 + -15 = 0
0 + -4x = -3 + -15
-4x = -3 + -15

Combine like terms: -3 + -15 = -18
-4x = -18

Divide each side by '-4'.
x = 4.5

Simplifying
x = 4.5

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