4x+5+3x+5=21

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Solution for 4x+5+3x+5=21 equation:


Simplifying
4x + 5 + 3x + 5 = 21

Reorder the terms:
5 + 5 + 4x + 3x = 21

Combine like terms: 5 + 5 = 10
10 + 4x + 3x = 21

Combine like terms: 4x + 3x = 7x
10 + 7x = 21

Solving
10 + 7x = 21

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 7x = 21 + -10

Combine like terms: 10 + -10 = 0
0 + 7x = 21 + -10
7x = 21 + -10

Combine like terms: 21 + -10 = 11
7x = 11

Divide each side by '7'.
x = 1.571428571

Simplifying
x = 1.571428571

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