-10=15+a

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Solution for -10=15+a equation:


Simplifying
-10 = 15 + a

Solving
-10 = 15 + 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.
-10 + -1a = 15 + a + -1a

Combine like terms: a + -1a = 0
-10 + -1a = 15 + 0
-10 + -1a = 15

Add '10' to each side of the equation.
-10 + 10 + -1a = 15 + 10

Combine like terms: -10 + 10 = 0
0 + -1a = 15 + 10
-1a = 15 + 10

Combine like terms: 15 + 10 = 25
-1a = 25

Divide each side by '-1'.
a = -25

Simplifying
a = -25

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