9(a+5)+7(2a+7)=

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Solution for 9(a+5)+7(2a+7)= equation:


Simplifying
9(a + 5) + 7(2a + 7) = 0

Reorder the terms:
9(5 + a) + 7(2a + 7) = 0
(5 * 9 + a * 9) + 7(2a + 7) = 0
(45 + 9a) + 7(2a + 7) = 0

Reorder the terms:
45 + 9a + 7(7 + 2a) = 0
45 + 9a + (7 * 7 + 2a * 7) = 0
45 + 9a + (49 + 14a) = 0

Reorder the terms:
45 + 49 + 9a + 14a = 0

Combine like terms: 45 + 49 = 94
94 + 9a + 14a = 0

Combine like terms: 9a + 14a = 23a
94 + 23a = 0

Solving
94 + 23a = 0

Solving for variable 'a'.

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

Add '-94' to each side of the equation.
94 + -94 + 23a = 0 + -94

Combine like terms: 94 + -94 = 0
0 + 23a = 0 + -94
23a = 0 + -94

Combine like terms: 0 + -94 = -94
23a = -94

Divide each side by '23'.
a = -4.086956522

Simplifying
a = -4.086956522

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