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

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


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

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

Reorder the terms:
-7 + 7x = 9(-4 + x)
-7 + 7x = (-4 * 9 + x * 9)
-7 + 7x = (-36 + 9x)

Solving
-7 + 7x = -36 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-7 + 7x + -9x = -36 + 9x + -9x

Combine like terms: 7x + -9x = -2x
-7 + -2x = -36 + 9x + -9x

Combine like terms: 9x + -9x = 0
-7 + -2x = -36 + 0
-7 + -2x = -36

Add '7' to each side of the equation.
-7 + 7 + -2x = -36 + 7

Combine like terms: -7 + 7 = 0
0 + -2x = -36 + 7
-2x = -36 + 7

Combine like terms: -36 + 7 = -29
-2x = -29

Divide each side by '-2'.
x = 14.5

Simplifying
x = 14.5

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