3x+7=x+45

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Solution for 3x+7=x+45 equation:


Simplifying
3x + 7 = x + 45

Reorder the terms:
7 + 3x = x + 45

Reorder the terms:
7 + 3x = 45 + x

Solving
7 + 3x = 45 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
7 + 3x + -1x = 45 + x + -1x

Combine like terms: 3x + -1x = 2x
7 + 2x = 45 + x + -1x

Combine like terms: x + -1x = 0
7 + 2x = 45 + 0
7 + 2x = 45

Add '-7' to each side of the equation.
7 + -7 + 2x = 45 + -7

Combine like terms: 7 + -7 = 0
0 + 2x = 45 + -7
2x = 45 + -7

Combine like terms: 45 + -7 = 38
2x = 38

Divide each side by '2'.
x = 19

Simplifying
x = 19

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