3a+7a=5a-7

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Solution for 3a+7a=5a-7 equation:


Simplifying
3a + 7a = 5a + -7

Combine like terms: 3a + 7a = 10a
10a = 5a + -7

Reorder the terms:
10a = -7 + 5a

Solving
10a = -7 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
10a + -5a = -7 + 5a + -5a

Combine like terms: 10a + -5a = 5a
5a = -7 + 5a + -5a

Combine like terms: 5a + -5a = 0
5a = -7 + 0
5a = -7

Divide each side by '5'.
a = -1.4

Simplifying
a = -1.4

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