3x+10=x+40

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Solution for 3x+10=x+40 equation:


Simplifying
3x + 10 = x + 40

Reorder the terms:
10 + 3x = x + 40

Reorder the terms:
10 + 3x = 40 + x

Solving
10 + 3x = 40 + 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.
10 + 3x + -1x = 40 + x + -1x

Combine like terms: 3x + -1x = 2x
10 + 2x = 40 + x + -1x

Combine like terms: x + -1x = 0
10 + 2x = 40 + 0
10 + 2x = 40

Add '-10' to each side of the equation.
10 + -10 + 2x = 40 + -10

Combine like terms: 10 + -10 = 0
0 + 2x = 40 + -10
2x = 40 + -10

Combine like terms: 40 + -10 = 30
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

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