-a-7a-(-7)=-17

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Solution for -a-7a-(-7)=-17 equation:


Simplifying
-1a + -7a + -1(-7) = -17

Multiply -1 * -7
-1a + -7a + 7 = -17

Reorder the terms:
7 + -1a + -7a = -17

Combine like terms: -1a + -7a = -8a
7 + -8a = -17

Solving
7 + -8a = -17

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + -8a = -17 + -7

Combine like terms: 7 + -7 = 0
0 + -8a = -17 + -7
-8a = -17 + -7

Combine like terms: -17 + -7 = -24
-8a = -24

Divide each side by '-8'.
a = 3

Simplifying
a = 3

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