-4(a-9)+11=16+7(9-a)

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Solution for -4(a-9)+11=16+7(9-a) equation:


Simplifying
-4(a + -9) + 11 = 16 + 7(9 + -1a)

Reorder the terms:
-4(-9 + a) + 11 = 16 + 7(9 + -1a)
(-9 * -4 + a * -4) + 11 = 16 + 7(9 + -1a)
(36 + -4a) + 11 = 16 + 7(9 + -1a)

Reorder the terms:
36 + 11 + -4a = 16 + 7(9 + -1a)

Combine like terms: 36 + 11 = 47
47 + -4a = 16 + 7(9 + -1a)
47 + -4a = 16 + (9 * 7 + -1a * 7)
47 + -4a = 16 + (63 + -7a)

Combine like terms: 16 + 63 = 79
47 + -4a = 79 + -7a

Solving
47 + -4a = 79 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
47 + -4a + 7a = 79 + -7a + 7a

Combine like terms: -4a + 7a = 3a
47 + 3a = 79 + -7a + 7a

Combine like terms: -7a + 7a = 0
47 + 3a = 79 + 0
47 + 3a = 79

Add '-47' to each side of the equation.
47 + -47 + 3a = 79 + -47

Combine like terms: 47 + -47 = 0
0 + 3a = 79 + -47
3a = 79 + -47

Combine like terms: 79 + -47 = 32
3a = 32

Divide each side by '3'.
a = 10.66666667

Simplifying
a = 10.66666667

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