2(a-1)-5a=7a

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Solution for 2(a-1)-5a=7a equation:


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

Reorder the terms:
2(-1 + a) + -5a = 7a
(-1 * 2 + a * 2) + -5a = 7a
(-2 + 2a) + -5a = 7a

Combine like terms: 2a + -5a = -3a
-2 + -3a = 7a

Solving
-2 + -3a = 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-2 + -3a + -7a = 7a + -7a

Combine like terms: -3a + -7a = -10a
-2 + -10a = 7a + -7a

Combine like terms: 7a + -7a = 0
-2 + -10a = 0

Add '2' to each side of the equation.
-2 + 2 + -10a = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -10a = 0 + 2
-10a = 0 + 2

Combine like terms: 0 + 2 = 2
-10a = 2

Divide each side by '-10'.
a = -0.2

Simplifying
a = -0.2

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