-237=-3(15+4a)

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Solution for -237=-3(15+4a) equation:


Simplifying
-237 = -3(15 + 4a)
-237 = (15 * -3 + 4a * -3)
-237 = (-45 + -12a)

Solving
-237 = -45 + -12a

Solving for variable 'a'.

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

Add '12a' to each side of the equation.
-237 + 12a = -45 + -12a + 12a

Combine like terms: -12a + 12a = 0
-237 + 12a = -45 + 0
-237 + 12a = -45

Add '237' to each side of the equation.
-237 + 237 + 12a = -45 + 237

Combine like terms: -237 + 237 = 0
0 + 12a = -45 + 237
12a = -45 + 237

Combine like terms: -45 + 237 = 192
12a = 192

Divide each side by '12'.
a = 16

Simplifying
a = 16

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