(-7a)-10=20-3a

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Solution for (-7a)-10=20-3a equation:


Simplifying
(-7a) + -10 = 20 + -3a

Reorder the terms:
-10 + (-7a) = 20 + -3a

Solving
-10 + (-7a) = 20 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
-10 + (-7a) + 3a = 20 + -3a + 3a

Combine like terms: (-7a) + 3a = -4a
-10 + -4a = 20 + -3a + 3a

Combine like terms: -3a + 3a = 0
-10 + -4a = 20 + 0
-10 + -4a = 20

Add '10' to each side of the equation.
-10 + 10 + -4a = 20 + 10

Combine like terms: -10 + 10 = 0
0 + -4a = 20 + 10
-4a = 20 + 10

Combine like terms: 20 + 10 = 30
-4a = 30

Divide each side by '-4'.
a = -7.5

Simplifying
a = -7.5

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