4-3(x+7)=9-x-3x

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Solution for 4-3(x+7)=9-x-3x equation:


Simplifying
4 + -3(x + 7) = 9 + -1x + -3x

Reorder the terms:
4 + -3(7 + x) = 9 + -1x + -3x
4 + (7 * -3 + x * -3) = 9 + -1x + -3x
4 + (-21 + -3x) = 9 + -1x + -3x

Combine like terms: 4 + -21 = -17
-17 + -3x = 9 + -1x + -3x

Combine like terms: -1x + -3x = -4x
-17 + -3x = 9 + -4x

Solving
-17 + -3x = 9 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-17 + -3x + 4x = 9 + -4x + 4x

Combine like terms: -3x + 4x = 1x
-17 + 1x = 9 + -4x + 4x

Combine like terms: -4x + 4x = 0
-17 + 1x = 9 + 0
-17 + 1x = 9

Add '17' to each side of the equation.
-17 + 17 + 1x = 9 + 17

Combine like terms: -17 + 17 = 0
0 + 1x = 9 + 17
1x = 9 + 17

Combine like terms: 9 + 17 = 26
1x = 26

Divide each side by '1'.
x = 26

Simplifying
x = 26

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