4x+21+3x+48=90

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Solution for 4x+21+3x+48=90 equation:


Simplifying
4x + 21 + 3x + 48 = 90

Reorder the terms:
21 + 48 + 4x + 3x = 90

Combine like terms: 21 + 48 = 69
69 + 4x + 3x = 90

Combine like terms: 4x + 3x = 7x
69 + 7x = 90

Solving
69 + 7x = 90

Solving for variable 'x'.

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

Add '-69' to each side of the equation.
69 + -69 + 7x = 90 + -69

Combine like terms: 69 + -69 = 0
0 + 7x = 90 + -69
7x = 90 + -69

Combine like terms: 90 + -69 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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