-5(9+a)=10

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Solution for -5(9+a)=10 equation: 


Simplifying
-5(9 + a) = 10
(9 * -5 + a * -5) = 10
(-45 + -5a) = 10

Solving
-45 + -5a = 10

Solving for variable 'a'.

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

Add '45' to each side of the equation.
-45 + 45 + -5a = 10 + 45

Combine like terms: -45 + 45 = 0
0 + -5a = 10 + 45
-5a = 10 + 45

Combine like terms: 10 + 45 = 55
-5a = 55

Divide each side by '-5'.
a = -11

Simplifying
a = -11

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