-4(5-42)=8a+4y

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Solution for -4(5-42)=8a+4y equation:


Simplifying
-4(5 + -42) = 8a + 4y

Combine like terms: 5 + -42 = -37
-4(-37) = 8a + 4y

Multiply -4 * -37
148 = 8a + 4y

Solving
148 = 8a + 4y

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
148 + -8a = 8a + -8a + 4y

Combine like terms: 8a + -8a = 0
148 + -8a = 0 + 4y
148 + -8a = 4y

Add '-148' to each side of the equation.
148 + -148 + -8a = -148 + 4y

Combine like terms: 148 + -148 = 0
0 + -8a = -148 + 4y
-8a = -148 + 4y

Divide each side by '-8'.
a = 18.5 + -0.5y

Simplifying
a = 18.5 + -0.5y

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