4(x-3)+y=21

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Solution for 4(x-3)+y=21 equation:


Simplifying
4(x + -3) + y = 21

Reorder the terms:
4(-3 + x) + y = 21
(-3 * 4 + x * 4) + y = 21
(-12 + 4x) + y = 21

Solving
-12 + 4x + y = 21

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 4x + 12 + y = 21 + 12

Reorder the terms:
-12 + 12 + 4x + y = 21 + 12

Combine like terms: -12 + 12 = 0
0 + 4x + y = 21 + 12
4x + y = 21 + 12

Combine like terms: 21 + 12 = 33
4x + y = 33

Add '-1y' to each side of the equation.
4x + y + -1y = 33 + -1y

Combine like terms: y + -1y = 0
4x + 0 = 33 + -1y
4x = 33 + -1y

Divide each side by '4'.
x = 8.25 + -0.25y

Simplifying
x = 8.25 + -0.25y

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