2a-1-5a=7

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


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

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

Combine like terms: 2a + -5a = -3a
-1 + -3a = 7

Solving
-1 + -3a = 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 + -3a = 7 + 1

Combine like terms: -1 + 1 = 0
0 + -3a = 7 + 1
-3a = 7 + 1

Combine like terms: 7 + 1 = 8
-3a = 8

Divide each side by '-3'.
a = -2.666666667

Simplifying
a = -2.666666667

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