10+9x=-20+x

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


Simplifying
10 + 9x = -20 + x

Solving
10 + 9x = -20 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
10 + 9x + -1x = -20 + x + -1x

Combine like terms: 9x + -1x = 8x
10 + 8x = -20 + x + -1x

Combine like terms: x + -1x = 0
10 + 8x = -20 + 0
10 + 8x = -20

Add '-10' to each side of the equation.
10 + -10 + 8x = -20 + -10

Combine like terms: 10 + -10 = 0
0 + 8x = -20 + -10
8x = -20 + -10

Combine like terms: -20 + -10 = -30
8x = -30

Divide each side by '8'.
x = -3.75

Simplifying
x = -3.75

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