15-3x=27-7x

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Solution for 15-3x=27-7x equation:


Simplifying
15 + -3x = 27 + -7x

Solving
15 + -3x = 27 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
15 + -3x + 7x = 27 + -7x + 7x

Combine like terms: -3x + 7x = 4x
15 + 4x = 27 + -7x + 7x

Combine like terms: -7x + 7x = 0
15 + 4x = 27 + 0
15 + 4x = 27

Add '-15' to each side of the equation.
15 + -15 + 4x = 27 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 27 + -15
4x = 27 + -15

Combine like terms: 27 + -15 = 12
4x = 12

Divide each side by '4'.
x = 3

Simplifying
x = 3

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