7(3x+10)=280

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Solution for 7(3x+10)=280 equation:


Simplifying
7(3x + 10) = 280

Reorder the terms:
7(10 + 3x) = 280
(10 * 7 + 3x * 7) = 280
(70 + 21x) = 280

Solving
70 + 21x = 280

Solving for variable 'x'.

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

Add '-70' to each side of the equation.
70 + -70 + 21x = 280 + -70

Combine like terms: 70 + -70 = 0
0 + 21x = 280 + -70
21x = 280 + -70

Combine like terms: 280 + -70 = 210
21x = 210

Divide each side by '21'.
x = 10

Simplifying
x = 10

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