21x+1+22x-2=90

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Solution for 21x+1+22x-2=90 equation:


Simplifying
21x + 1 + 22x + -2 = 90

Reorder the terms:
1 + -2 + 21x + 22x = 90

Combine like terms: 1 + -2 = -1
-1 + 21x + 22x = 90

Combine like terms: 21x + 22x = 43x
-1 + 43x = 90

Solving
-1 + 43x = 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 + 43x = 90 + 1

Combine like terms: -1 + 1 = 0
0 + 43x = 90 + 1
43x = 90 + 1

Combine like terms: 90 + 1 = 91
43x = 91

Divide each side by '43'.
x = 2.11627907

Simplifying
x = 2.11627907

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