X-40=3X-20

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Solution for X-40=3X-20 equation:


Simplifying
X + -40 = 3X + -20

Reorder the terms:
-40 + X = 3X + -20

Reorder the terms:
-40 + X = -20 + 3X

Solving
-40 + X = -20 + 3X

Solving for variable 'X'.

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

Add '-3X' to each side of the equation.
-40 + X + -3X = -20 + 3X + -3X

Combine like terms: X + -3X = -2X
-40 + -2X = -20 + 3X + -3X

Combine like terms: 3X + -3X = 0
-40 + -2X = -20 + 0
-40 + -2X = -20

Add '40' to each side of the equation.
-40 + 40 + -2X = -20 + 40

Combine like terms: -40 + 40 = 0
0 + -2X = -20 + 40
-2X = -20 + 40

Combine like terms: -20 + 40 = 20
-2X = 20

Divide each side by '-2'.
X = -10

Simplifying
X = -10

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