a+3(x+4)=20

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Solution for a+3(x+4)=20 equation:


Simplifying
a + 3(x + 4) = 20

Reorder the terms:
a + 3(4 + x) = 20
a + (4 * 3 + x * 3) = 20
a + (12 + 3x) = 20

Reorder the terms:
12 + a + 3x = 20

Solving
12 + a + 3x = 20

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + a + -12 + 3x = 20 + -12

Reorder the terms:
12 + -12 + a + 3x = 20 + -12

Combine like terms: 12 + -12 = 0
0 + a + 3x = 20 + -12
a + 3x = 20 + -12

Combine like terms: 20 + -12 = 8
a + 3x = 8

Add '-3x' to each side of the equation.
a + 3x + -3x = 8 + -3x

Combine like terms: 3x + -3x = 0
a + 0 = 8 + -3x
a = 8 + -3x

Simplifying
a = 8 + -3x

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