3x+y+7=90

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Solution for 3x+y+7=90 equation:


Simplifying
3x + y + 7 = 90

Reorder the terms:
7 + 3x + y = 90

Solving
7 + 3x + y = 90

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + 3x + -7 + y = 90 + -7

Reorder the terms:
7 + -7 + 3x + y = 90 + -7

Combine like terms: 7 + -7 = 0
0 + 3x + y = 90 + -7
3x + y = 90 + -7

Combine like terms: 90 + -7 = 83
3x + y = 83

Add '-1y' to each side of the equation.
3x + y + -1y = 83 + -1y

Combine like terms: y + -1y = 0
3x + 0 = 83 + -1y
3x = 83 + -1y

Divide each side by '3'.
x = 27.66666667 + -0.3333333333y

Simplifying
x = 27.66666667 + -0.3333333333y

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