5-3(1+6)=a-1+8a

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Solution for 5-3(1+6)=a-1+8a equation:


Simplifying
5 + -3(1 + 6) = a + -1 + 8a

Combine like terms: 1 + 6 = 7
5 + -3(7) = a + -1 + 8a

Multiply -3 * 7
5 + -21 = a + -1 + 8a

Combine like terms: 5 + -21 = -16
-16 = a + -1 + 8a

Reorder the terms:
-16 = -1 + a + 8a

Combine like terms: a + 8a = 9a
-16 = -1 + 9a

Solving
-16 = -1 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
-16 + -9a = -1 + 9a + -9a

Combine like terms: 9a + -9a = 0
-16 + -9a = -1 + 0
-16 + -9a = -1

Add '16' to each side of the equation.
-16 + 16 + -9a = -1 + 16

Combine like terms: -16 + 16 = 0
0 + -9a = -1 + 16
-9a = -1 + 16

Combine like terms: -1 + 16 = 15
-9a = 15

Divide each side by '-9'.
a = -1.666666667

Simplifying
a = -1.666666667

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