20x+40=21x-10

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Solution for 20x+40=21x-10 equation:


Simplifying
20x + 40 = 21x + -10

Reorder the terms:
40 + 20x = 21x + -10

Reorder the terms:
40 + 20x = -10 + 21x

Solving
40 + 20x = -10 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
40 + 20x + -21x = -10 + 21x + -21x

Combine like terms: 20x + -21x = -1x
40 + -1x = -10 + 21x + -21x

Combine like terms: 21x + -21x = 0
40 + -1x = -10 + 0
40 + -1x = -10

Add '-40' to each side of the equation.
40 + -40 + -1x = -10 + -40

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

Combine like terms: -10 + -40 = -50
-1x = -50

Divide each side by '-1'.
x = 50

Simplifying
x = 50

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