8a-10(3-a)=42

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Solution for 8a-10(3-a)=42 equation:


Simplifying
8a + -10(3 + -1a) = 42
8a + (3 * -10 + -1a * -10) = 42
8a + (-30 + 10a) = 42

Reorder the terms:
-30 + 8a + 10a = 42

Combine like terms: 8a + 10a = 18a
-30 + 18a = 42

Solving
-30 + 18a = 42

Solving for variable 'a'.

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

Add '30' to each side of the equation.
-30 + 30 + 18a = 42 + 30

Combine like terms: -30 + 30 = 0
0 + 18a = 42 + 30
18a = 42 + 30

Combine like terms: 42 + 30 = 72
18a = 72

Divide each side by '18'.
a = 4

Simplifying
a = 4

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