4x-7=90x-72

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Solution for 4x-7=90x-72 equation:


Simplifying
4x + -7 = 90x + -72

Reorder the terms:
-7 + 4x = 90x + -72

Reorder the terms:
-7 + 4x = -72 + 90x

Solving
-7 + 4x = -72 + 90x

Solving for variable 'x'.

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

Add '-90x' to each side of the equation.
-7 + 4x + -90x = -72 + 90x + -90x

Combine like terms: 4x + -90x = -86x
-7 + -86x = -72 + 90x + -90x

Combine like terms: 90x + -90x = 0
-7 + -86x = -72 + 0
-7 + -86x = -72

Add '7' to each side of the equation.
-7 + 7 + -86x = -72 + 7

Combine like terms: -7 + 7 = 0
0 + -86x = -72 + 7
-86x = -72 + 7

Combine like terms: -72 + 7 = -65
-86x = -65

Divide each side by '-86'.
x = 0.7558139535

Simplifying
x = 0.7558139535

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