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

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Solution for 4-(x+7)=9-(3x+1) equation:


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

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

Combine like terms: 4 + -7 = -3
-3 + -1x = 9 + -1(3x + 1)

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

Combine like terms: 9 + -1 = 8
-3 + -1x = 8 + -3x

Solving
-3 + -1x = 8 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-3 + -1x + 3x = 8 + -3x + 3x

Combine like terms: -1x + 3x = 2x
-3 + 2x = 8 + -3x + 3x

Combine like terms: -3x + 3x = 0
-3 + 2x = 8 + 0
-3 + 2x = 8

Add '3' to each side of the equation.
-3 + 3 + 2x = 8 + 3

Combine like terms: -3 + 3 = 0
0 + 2x = 8 + 3
2x = 8 + 3

Combine like terms: 8 + 3 = 11
2x = 11

Divide each side by '2'.
x = 5.5

Simplifying
x = 5.5

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