20x-7=40x+9

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Solution for 20x-7=40x+9 equation:


Simplifying
20x + -7 = 40x + 9

Reorder the terms:
-7 + 20x = 40x + 9

Reorder the terms:
-7 + 20x = 9 + 40x

Solving
-7 + 20x = 9 + 40x

Solving for variable 'x'.

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

Add '-40x' to each side of the equation.
-7 + 20x + -40x = 9 + 40x + -40x

Combine like terms: 20x + -40x = -20x
-7 + -20x = 9 + 40x + -40x

Combine like terms: 40x + -40x = 0
-7 + -20x = 9 + 0
-7 + -20x = 9

Add '7' to each side of the equation.
-7 + 7 + -20x = 9 + 7

Combine like terms: -7 + 7 = 0
0 + -20x = 9 + 7
-20x = 9 + 7

Combine like terms: 9 + 7 = 16
-20x = 16

Divide each side by '-20'.
x = -0.8

Simplifying
x = -0.8

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