7(x+3)+4=2x+100

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Solution for 7(x+3)+4=2x+100 equation:


Simplifying
7(x + 3) + 4 = 2x + 100

Reorder the terms:
7(3 + x) + 4 = 2x + 100
(3 * 7 + x * 7) + 4 = 2x + 100
(21 + 7x) + 4 = 2x + 100

Reorder the terms:
21 + 4 + 7x = 2x + 100

Combine like terms: 21 + 4 = 25
25 + 7x = 2x + 100

Reorder the terms:
25 + 7x = 100 + 2x

Solving
25 + 7x = 100 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
25 + 7x + -2x = 100 + 2x + -2x

Combine like terms: 7x + -2x = 5x
25 + 5x = 100 + 2x + -2x

Combine like terms: 2x + -2x = 0
25 + 5x = 100 + 0
25 + 5x = 100

Add '-25' to each side of the equation.
25 + -25 + 5x = 100 + -25

Combine like terms: 25 + -25 = 0
0 + 5x = 100 + -25
5x = 100 + -25

Combine like terms: 100 + -25 = 75
5x = 75

Divide each side by '5'.
x = 15

Simplifying
x = 15

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