1(a-1)-5a=7

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Solution for 1(a-1)-5a=7 equation:


Simplifying
1(a + -1) + -5a = 7

Reorder the terms:
1(-1 + a) + -5a = 7
(-1 * 1 + a * 1) + -5a = 7
(-1 + 1a) + -5a = 7

Combine like terms: 1a + -5a = -4a
-1 + -4a = 7

Solving
-1 + -4a = 7

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + -4a = 7 + 1

Combine like terms: -1 + 1 = 0
0 + -4a = 7 + 1
-4a = 7 + 1

Combine like terms: 7 + 1 = 8
-4a = 8

Divide each side by '-4'.
a = -2

Simplifying
a = -2

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