3a+7=10+a

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Solution for 3a+7=10+a equation:


Simplifying
3a + 7 = 10 + a

Reorder the terms:
7 + 3a = 10 + a

Solving
7 + 3a = 10 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
7 + 3a + -1a = 10 + a + -1a

Combine like terms: 3a + -1a = 2a
7 + 2a = 10 + a + -1a

Combine like terms: a + -1a = 0
7 + 2a = 10 + 0
7 + 2a = 10

Add '-7' to each side of the equation.
7 + -7 + 2a = 10 + -7

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

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

Divide each side by '2'.
a = 1.5

Simplifying
a = 1.5

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