5X+7=9-(8X-9)

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Solution for 5X+7=9-(8X-9) equation:


Simplifying
5X + 7 = 9 + -1(8X + -9)

Reorder the terms:
7 + 5X = 9 + -1(8X + -9)

Reorder the terms:
7 + 5X = 9 + -1(-9 + 8X)
7 + 5X = 9 + (-9 * -1 + 8X * -1)
7 + 5X = 9 + (9 + -8X)

Combine like terms: 9 + 9 = 18
7 + 5X = 18 + -8X

Solving
7 + 5X = 18 + -8X

Solving for variable 'X'.

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

Add '8X' to each side of the equation.
7 + 5X + 8X = 18 + -8X + 8X

Combine like terms: 5X + 8X = 13X
7 + 13X = 18 + -8X + 8X

Combine like terms: -8X + 8X = 0
7 + 13X = 18 + 0
7 + 13X = 18

Add '-7' to each side of the equation.
7 + -7 + 13X = 18 + -7

Combine like terms: 7 + -7 = 0
0 + 13X = 18 + -7
13X = 18 + -7

Combine like terms: 18 + -7 = 11
13X = 11

Divide each side by '13'.
X = 0.8461538462

Simplifying
X = 0.8461538462

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