10x+20=9x+15

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Solution for 10x+20=9x+15 equation:


Simplifying
10x + 20 = 9x + 15

Reorder the terms:
20 + 10x = 9x + 15

Reorder the terms:
20 + 10x = 15 + 9x

Solving
20 + 10x = 15 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
20 + 10x + -9x = 15 + 9x + -9x

Combine like terms: 10x + -9x = 1x
20 + 1x = 15 + 9x + -9x

Combine like terms: 9x + -9x = 0
20 + 1x = 15 + 0
20 + 1x = 15

Add '-20' to each side of the equation.
20 + -20 + 1x = 15 + -20

Combine like terms: 20 + -20 = 0
0 + 1x = 15 + -20
1x = 15 + -20

Combine like terms: 15 + -20 = -5
1x = -5

Divide each side by '1'.
x = -5

Simplifying
x = -5

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