3a+10=7a-2

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Solution for 3a+10=7a-2 equation:


Simplifying
3a + 10 = 7a + -2

Reorder the terms:
10 + 3a = 7a + -2

Reorder the terms:
10 + 3a = -2 + 7a

Solving
10 + 3a = -2 + 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.
10 + 3a + -7a = -2 + 7a + -7a

Combine like terms: 3a + -7a = -4a
10 + -4a = -2 + 7a + -7a

Combine like terms: 7a + -7a = 0
10 + -4a = -2 + 0
10 + -4a = -2

Add '-10' to each side of the equation.
10 + -10 + -4a = -2 + -10

Combine like terms: 10 + -10 = 0
0 + -4a = -2 + -10
-4a = -2 + -10

Combine like terms: -2 + -10 = -12
-4a = -12

Divide each side by '-4'.
a = 3

Simplifying
a = 3

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