10=-a+3a

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Solution for 10=-a+3a equation:


Simplifying
10 = -1a + 3a

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

Solving
10 = 2a

Solving for variable 'a'.

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

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

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

Add '-10' to each side of the equation.
10 + -10 + -2a = 0 + -10

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

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

Divide each side by '-2'.
a = 5

Simplifying
a = 5

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