(-9x+1)-(-7x+8)=

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Solution for (-9x+1)-(-7x+8)= equation:


Simplifying
(-9x + 1) + -1(-7x + 8) = 0

Reorder the terms:
(1 + -9x) + -1(-7x + 8) = 0

Remove parenthesis around (1 + -9x)
1 + -9x + -1(-7x + 8) = 0

Reorder the terms:
1 + -9x + -1(8 + -7x) = 0
1 + -9x + (8 * -1 + -7x * -1) = 0
1 + -9x + (-8 + 7x) = 0

Reorder the terms:
1 + -8 + -9x + 7x = 0

Combine like terms: 1 + -8 = -7
-7 + -9x + 7x = 0

Combine like terms: -9x + 7x = -2x
-7 + -2x = 0

Solving
-7 + -2x = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + -2x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -2x = 0 + 7
-2x = 0 + 7

Combine like terms: 0 + 7 = 7
-2x = 7

Divide each side by '-2'.
x = -3.5

Simplifying
x = -3.5

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