1x+3(x-9)=-7

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Solution for 1x+3(x-9)=-7 equation:


Simplifying
1x + 3(x + -9) = -7

Reorder the terms:
1x + 3(-9 + x) = -7
1x + (-9 * 3 + x * 3) = -7
1x + (-27 + 3x) = -7

Reorder the terms:
-27 + 1x + 3x = -7

Combine like terms: 1x + 3x = 4x
-27 + 4x = -7

Solving
-27 + 4x = -7

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 4x = -7 + 27

Combine like terms: -27 + 27 = 0
0 + 4x = -7 + 27
4x = -7 + 27

Combine like terms: -7 + 27 = 20
4x = 20

Divide each side by '4'.
x = 5

Simplifying
x = 5

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