30x-10=20x-40

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Solution for 30x-10=20x-40 equation:


Simplifying
30x + -10 = 20x + -40

Reorder the terms:
-10 + 30x = 20x + -40

Reorder the terms:
-10 + 30x = -40 + 20x

Solving
-10 + 30x = -40 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
-10 + 30x + -20x = -40 + 20x + -20x

Combine like terms: 30x + -20x = 10x
-10 + 10x = -40 + 20x + -20x

Combine like terms: 20x + -20x = 0
-10 + 10x = -40 + 0
-10 + 10x = -40

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

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

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

Divide each side by '10'.
x = -3

Simplifying
x = -3

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