7x+9(1-2x)=4-7(x+1)

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Solution for 7x+9(1-2x)=4-7(x+1) equation:


Simplifying
7x + 9(1 + -2x) = 4 + -7(x + 1)
7x + (1 * 9 + -2x * 9) = 4 + -7(x + 1)
7x + (9 + -18x) = 4 + -7(x + 1)

Reorder the terms:
9 + 7x + -18x = 4 + -7(x + 1)

Combine like terms: 7x + -18x = -11x
9 + -11x = 4 + -7(x + 1)

Reorder the terms:
9 + -11x = 4 + -7(1 + x)
9 + -11x = 4 + (1 * -7 + x * -7)
9 + -11x = 4 + (-7 + -7x)

Combine like terms: 4 + -7 = -3
9 + -11x = -3 + -7x

Solving
9 + -11x = -3 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
9 + -11x + 7x = -3 + -7x + 7x

Combine like terms: -11x + 7x = -4x
9 + -4x = -3 + -7x + 7x

Combine like terms: -7x + 7x = 0
9 + -4x = -3 + 0
9 + -4x = -3

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

Combine like terms: 9 + -9 = 0
0 + -4x = -3 + -9
-4x = -3 + -9

Combine like terms: -3 + -9 = -12
-4x = -12

Divide each side by '-4'.
x = 3

Simplifying
x = 3

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