3x+5+7x-4+3x+5+7x-4=102

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Solution for 3x+5+7x-4+3x+5+7x-4=102 equation:


Simplifying
3x + 5 + 7x + -4 + 3x + 5 + 7x + -4 = 102

Reorder the terms:
5 + -4 + 5 + -4 + 3x + 7x + 3x + 7x = 102

Combine like terms: 5 + -4 = 1
1 + 5 + -4 + 3x + 7x + 3x + 7x = 102

Combine like terms: 1 + 5 = 6
6 + -4 + 3x + 7x + 3x + 7x = 102

Combine like terms: 6 + -4 = 2
2 + 3x + 7x + 3x + 7x = 102

Combine like terms: 3x + 7x = 10x
2 + 10x + 3x + 7x = 102

Combine like terms: 10x + 3x = 13x
2 + 13x + 7x = 102

Combine like terms: 13x + 7x = 20x
2 + 20x = 102

Solving
2 + 20x = 102

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 20x = 102 + -2

Combine like terms: 2 + -2 = 0
0 + 20x = 102 + -2
20x = 102 + -2

Combine like terms: 102 + -2 = 100
20x = 100

Divide each side by '20'.
x = 5

Simplifying
x = 5

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