9x-40=2x+30

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Solution for 9x-40=2x+30 equation:


Simplifying
9x + -40 = 2x + 30

Reorder the terms:
-40 + 9x = 2x + 30

Reorder the terms:
-40 + 9x = 30 + 2x

Solving
-40 + 9x = 30 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-40 + 9x + -2x = 30 + 2x + -2x

Combine like terms: 9x + -2x = 7x
-40 + 7x = 30 + 2x + -2x

Combine like terms: 2x + -2x = 0
-40 + 7x = 30 + 0
-40 + 7x = 30

Add '40' to each side of the equation.
-40 + 40 + 7x = 30 + 40

Combine like terms: -40 + 40 = 0
0 + 7x = 30 + 40
7x = 30 + 40

Combine like terms: 30 + 40 = 70
7x = 70

Divide each side by '7'.
x = 10

Simplifying
x = 10

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