10(a-1)-2(a+2)+3=13

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Solution for 10(a-1)-2(a+2)+3=13 equation:


Simplifying
10(a + -1) + -2(a + 2) + 3 = 13

Reorder the terms:
10(-1 + a) + -2(a + 2) + 3 = 13
(-1 * 10 + a * 10) + -2(a + 2) + 3 = 13
(-10 + 10a) + -2(a + 2) + 3 = 13

Reorder the terms:
-10 + 10a + -2(2 + a) + 3 = 13
-10 + 10a + (2 * -2 + a * -2) + 3 = 13
-10 + 10a + (-4 + -2a) + 3 = 13

Reorder the terms:
-10 + -4 + 3 + 10a + -2a = 13

Combine like terms: -10 + -4 = -14
-14 + 3 + 10a + -2a = 13

Combine like terms: -14 + 3 = -11
-11 + 10a + -2a = 13

Combine like terms: 10a + -2a = 8a
-11 + 8a = 13

Solving
-11 + 8a = 13

Solving for variable 'a'.

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

Add '11' to each side of the equation.
-11 + 11 + 8a = 13 + 11

Combine like terms: -11 + 11 = 0
0 + 8a = 13 + 11
8a = 13 + 11

Combine like terms: 13 + 11 = 24
8a = 24

Divide each side by '8'.
a = 3

Simplifying
a = 3

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