2+3a-5a=10

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Solution for 2+3a-5a=10 equation: 


Simplifying
2 + 3a + -5a = 10

Combine like terms: 3a + -5a = -2a
2 + -2a = 10

Solving
2 + -2a = 10

Solving for variable 'a'.

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

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

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

Combine like terms: 10 + -2 = 8
-2a = 8

Divide each side by '-2'.
a = -4

Simplifying
a = -4

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