7(x-2)-9(x+4)=18

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Solution for 7(x-2)-9(x+4)=18 equation:


Simplifying
7(x + -2) + -9(x + 4) = 18

Reorder the terms:
7(-2 + x) + -9(x + 4) = 18
(-2 * 7 + x * 7) + -9(x + 4) = 18
(-14 + 7x) + -9(x + 4) = 18

Reorder the terms:
-14 + 7x + -9(4 + x) = 18
-14 + 7x + (4 * -9 + x * -9) = 18
-14 + 7x + (-36 + -9x) = 18

Reorder the terms:
-14 + -36 + 7x + -9x = 18

Combine like terms: -14 + -36 = -50
-50 + 7x + -9x = 18

Combine like terms: 7x + -9x = -2x
-50 + -2x = 18

Solving
-50 + -2x = 18

Solving for variable 'x'.

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

Add '50' to each side of the equation.
-50 + 50 + -2x = 18 + 50

Combine like terms: -50 + 50 = 0
0 + -2x = 18 + 50
-2x = 18 + 50

Combine like terms: 18 + 50 = 68
-2x = 68

Divide each side by '-2'.
x = -34

Simplifying
x = -34

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