5+3x=7[x+3]

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Solution for 5+3x=7[x+3] equation:


Simplifying
5 + 3x = 7[x + 3]

Reorder the terms:
5 + 3x = 7[3 + x]
5 + 3x = [3 * 7 + x * 7]
5 + 3x = [21 + 7x]

Solving
5 + 3x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
5 + 3x + -7x = 21 + 7x + -7x

Combine like terms: 3x + -7x = -4x
5 + -4x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
5 + -4x = 21 + 0
5 + -4x = 21

Add '-5' to each side of the equation.
5 + -5 + -4x = 21 + -5

Combine like terms: 5 + -5 = 0
0 + -4x = 21 + -5
-4x = 21 + -5

Combine like terms: 21 + -5 = 16
-4x = 16

Divide each side by '-4'.
x = -4

Simplifying
x = -4

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