3x-4+4x+5=90

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Solution for 3x-4+4x+5=90 equation:


Simplifying
3x + -4 + 4x + 5 = 90

Reorder the terms:
-4 + 5 + 3x + 4x = 90

Combine like terms: -4 + 5 = 1
1 + 3x + 4x = 90

Combine like terms: 3x + 4x = 7x
1 + 7x = 90

Solving
1 + 7x = 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 + -1 + 7x = 90 + -1

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

Combine like terms: 90 + -1 = 89
7x = 89

Divide each side by '7'.
x = 12.71428571

Simplifying
x = 12.71428571

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