2(15)+2(3x+10)=420

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Solution for 2(15)+2(3x+10)=420 equation:


Simplifying
2(15) + 2(3x + 10) = 420

Multiply 2 * 15
30 + 2(3x + 10) = 420

Reorder the terms:
30 + 2(10 + 3x) = 420
30 + (10 * 2 + 3x * 2) = 420
30 + (20 + 6x) = 420

Combine like terms: 30 + 20 = 50
50 + 6x = 420

Solving
50 + 6x = 420

Solving for variable 'x'.

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

Add '-50' to each side of the equation.
50 + -50 + 6x = 420 + -50

Combine like terms: 50 + -50 = 0
0 + 6x = 420 + -50
6x = 420 + -50

Combine like terms: 420 + -50 = 370
6x = 370

Divide each side by '6'.
x = 61.66666667

Simplifying
x = 61.66666667

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