87-10a=100

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Solution for 87-10a=100 equation:


Simplifying
87 + -10a = 100

Solving
87 + -10a = 100

Solving for variable 'a'.

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

Add '-87' to each side of the equation.
87 + -87 + -10a = 100 + -87

Combine like terms: 87 + -87 = 0
0 + -10a = 100 + -87
-10a = 100 + -87

Combine like terms: 100 + -87 = 13
-10a = 13

Divide each side by '-10'.
a = -1.3

Simplifying
a = -1.3

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