-9(x+9)=7(4+x)+51

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Solution for -9(x+9)=7(4+x)+51 equation:


Simplifying
-9(x + 9) = 7(4 + x) + 51

Reorder the terms:
-9(9 + x) = 7(4 + x) + 51
(9 * -9 + x * -9) = 7(4 + x) + 51
(-81 + -9x) = 7(4 + x) + 51
-81 + -9x = (4 * 7 + x * 7) + 51
-81 + -9x = (28 + 7x) + 51

Reorder the terms:
-81 + -9x = 28 + 51 + 7x

Combine like terms: 28 + 51 = 79
-81 + -9x = 79 + 7x

Solving
-81 + -9x = 79 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-81 + -9x + -7x = 79 + 7x + -7x

Combine like terms: -9x + -7x = -16x
-81 + -16x = 79 + 7x + -7x

Combine like terms: 7x + -7x = 0
-81 + -16x = 79 + 0
-81 + -16x = 79

Add '81' to each side of the equation.
-81 + 81 + -16x = 79 + 81

Combine like terms: -81 + 81 = 0
0 + -16x = 79 + 81
-16x = 79 + 81

Combine like terms: 79 + 81 = 160
-16x = 160

Divide each side by '-16'.
x = -10

Simplifying
x = -10

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