9(-7-6a)+7(1+3a)=

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Solution for 9(-7-6a)+7(1+3a)= equation:


Simplifying
9(-7 + -6a) + 7(1 + 3a) = 0
(-7 * 9 + -6a * 9) + 7(1 + 3a) = 0
(-63 + -54a) + 7(1 + 3a) = 0
-63 + -54a + (1 * 7 + 3a * 7) = 0
-63 + -54a + (7 + 21a) = 0

Reorder the terms:
-63 + 7 + -54a + 21a = 0

Combine like terms: -63 + 7 = -56
-56 + -54a + 21a = 0

Combine like terms: -54a + 21a = -33a
-56 + -33a = 0

Solving
-56 + -33a = 0

Solving for variable 'a'.

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

Add '56' to each side of the equation.
-56 + 56 + -33a = 0 + 56

Combine like terms: -56 + 56 = 0
0 + -33a = 0 + 56
-33a = 0 + 56

Combine like terms: 0 + 56 = 56
-33a = 56

Divide each side by '-33'.
a = -1.696969697

Simplifying
a = -1.696969697

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