a-1(7+2a)=2

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Solution for a-1(7+2a)=2 equation:


Simplifying
a + -1(7 + 2a) = 2
a + (7 * -1 + 2a * -1) = 2
a + (-7 + -2a) = 2

Reorder the terms:
-7 + a + -2a = 2

Combine like terms: a + -2a = -1a
-7 + -1a = 2

Solving
-7 + -1a = 2

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 + -1a = 2 + 7

Combine like terms: -7 + 7 = 0
0 + -1a = 2 + 7
-1a = 2 + 7

Combine like terms: 2 + 7 = 9
-1a = 9

Divide each side by '-1'.
a = -9

Simplifying
a = -9

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