15a-11b=-87

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Solution for 15a-11b=-87 equation: 


Simplifying
15a + -11b = -87

Solving
15a + -11b = -87

Solving for variable 'a'.

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

Add '11b' to each side of the equation.
15a + -11b + 11b = -87 + 11b

Combine like terms: -11b + 11b = 0
15a + 0 = -87 + 11b
15a = -87 + 11b

Divide each side by '15'.
a = -5.8 + 0.7333333333b

Simplifying
a = -5.8 + 0.7333333333b

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