7X-2(5-4X)=9X-4-(X+1)

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Solution for 7X-2(5-4X)=9X-4-(X+1) equation:


Simplifying
7X + -2(5 + -4X) = 9X + -4 + -1(X + 1)
7X + (5 * -2 + -4X * -2) = 9X + -4 + -1(X + 1)
7X + (-10 + 8X) = 9X + -4 + -1(X + 1)

Reorder the terms:
-10 + 7X + 8X = 9X + -4 + -1(X + 1)

Combine like terms: 7X + 8X = 15X
-10 + 15X = 9X + -4 + -1(X + 1)

Reorder the terms:
-10 + 15X = 9X + -4 + -1(1 + X)
-10 + 15X = 9X + -4 + (1 * -1 + X * -1)
-10 + 15X = 9X + -4 + (-1 + -1X)

Reorder the terms:
-10 + 15X = -4 + -1 + 9X + -1X

Combine like terms: -4 + -1 = -5
-10 + 15X = -5 + 9X + -1X

Combine like terms: 9X + -1X = 8X
-10 + 15X = -5 + 8X

Solving
-10 + 15X = -5 + 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.
-10 + 15X + -8X = -5 + 8X + -8X

Combine like terms: 15X + -8X = 7X
-10 + 7X = -5 + 8X + -8X

Combine like terms: 8X + -8X = 0
-10 + 7X = -5 + 0
-10 + 7X = -5

Add '10' to each side of the equation.
-10 + 10 + 7X = -5 + 10

Combine like terms: -10 + 10 = 0
0 + 7X = -5 + 10
7X = -5 + 10

Combine like terms: -5 + 10 = 5
7X = 5

Divide each side by '7'.
X = 0.7142857143

Simplifying
X = 0.7142857143

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