3(x+9)-7=x+10

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Solution for 3(x+9)-7=x+10 equation:


Simplifying
3(x + 9) + -7 = x + 10

Reorder the terms:
3(9 + x) + -7 = x + 10
(9 * 3 + x * 3) + -7 = x + 10
(27 + 3x) + -7 = x + 10

Reorder the terms:
27 + -7 + 3x = x + 10

Combine like terms: 27 + -7 = 20
20 + 3x = x + 10

Reorder the terms:
20 + 3x = 10 + x

Solving
20 + 3x = 10 + 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.
20 + 3x + -1x = 10 + x + -1x

Combine like terms: 3x + -1x = 2x
20 + 2x = 10 + x + -1x

Combine like terms: x + -1x = 0
20 + 2x = 10 + 0
20 + 2x = 10

Add '-20' to each side of the equation.
20 + -20 + 2x = 10 + -20

Combine like terms: 20 + -20 = 0
0 + 2x = 10 + -20
2x = 10 + -20

Combine like terms: 10 + -20 = -10
2x = -10

Divide each side by '2'.
x = -5

Simplifying
x = -5

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