7x+4y-1=90

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Solution for 7x+4y-1=90 equation:


Simplifying
7x + 4y + -1 = 90

Reorder the terms:
-1 + 7x + 4y = 90

Solving
-1 + 7x + 4y = 90

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 7x + 1 + 4y = 90 + 1

Reorder the terms:
-1 + 1 + 7x + 4y = 90 + 1

Combine like terms: -1 + 1 = 0
0 + 7x + 4y = 90 + 1
7x + 4y = 90 + 1

Combine like terms: 90 + 1 = 91
7x + 4y = 91

Add '-4y' to each side of the equation.
7x + 4y + -4y = 91 + -4y

Combine like terms: 4y + -4y = 0
7x + 0 = 91 + -4y
7x = 91 + -4y

Divide each side by '7'.
x = 13 + -0.5714285714y

Simplifying
x = 13 + -0.5714285714y

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