-10=-(2+a)-2a

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Solution for -10=-(2+a)-2a equation:


Simplifying
-10 = -1(2 + a) + -2a
-10 = (2 * -1 + a * -1) + -2a
-10 = (-2 + -1a) + -2a

Combine like terms: -1a + -2a = -3a
-10 = -2 + -3a

Solving
-10 = -2 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
-10 + 3a = -2 + -3a + 3a

Combine like terms: -3a + 3a = 0
-10 + 3a = -2 + 0
-10 + 3a = -2

Add '10' to each side of the equation.
-10 + 10 + 3a = -2 + 10

Combine like terms: -10 + 10 = 0
0 + 3a = -2 + 10
3a = -2 + 10

Combine like terms: -2 + 10 = 8
3a = 8

Divide each side by '3'.
a = 2.666666667

Simplifying
a = 2.666666667

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