(-10a)-(-2a)-(-15a)+(-10)=3

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Solution for (-10a)-(-2a)-(-15a)+(-10)=3 equation:


Simplifying
(-10a) + -1(-2a) + -1(-15a) + (-10) = 3

Remove parenthesis around (-2a)
(-10a) + -1 * -2a + -1(-15a) + (-10) = 3

Multiply -1 * -2
(-10a) + 2a + -1(-15a) + (-10) = 3

Remove parenthesis around (-15a)
(-10a) + 2a + -1 * -15a + (-10) = 3

Multiply -1 * -15
(-10a) + 2a + 15a + (-10) = 3
(-10a) + 2a + 15a + -10 = 3

Reorder the terms:
-10 + (-10a) + 2a + 15a = 3

Combine like terms: (-10a) + 2a = -8a
-10 + -8a + 15a = 3

Combine like terms: -8a + 15a = 7a
-10 + 7a = 3

Solving
-10 + 7a = 3

Solving for variable 'a'.

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

Add '10' to each side of the equation.
-10 + 10 + 7a = 3 + 10

Combine like terms: -10 + 10 = 0
0 + 7a = 3 + 10
7a = 3 + 10

Combine like terms: 3 + 10 = 13
7a = 13

Divide each side by '7'.
a = 1.857142857

Simplifying
a = 1.857142857

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