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

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


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

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

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

Solving
-9 + 9x = 4 + 4x

Solving for variable 'x'.

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

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

Combine like terms: 9x + -4x = 5x
-9 + 5x = 4 + 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + 5x = 4 + 0
-9 + 5x = 4

Add '9' to each side of the equation.
-9 + 9 + 5x = 4 + 9

Combine like terms: -9 + 9 = 0
0 + 5x = 4 + 9
5x = 4 + 9

Combine like terms: 4 + 9 = 13
5x = 13

Divide each side by '5'.
x = 2.6

Simplifying
x = 2.6

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