x-1=2(3+7)

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Solution for x-1=2(3+7) equation: 


Simplifying
x + -1 = 2(3 + 7)

Reorder the terms:
-1 + x = 2(3 + 7)

Combine like terms: 3 + 7 = 10
-1 + x = 2(10)

Multiply 2 * 10
-1 + x = 20

Solving
-1 + x = 20

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + x = 20 + 1

Combine like terms: -1 + 1 = 0
0 + x = 20 + 1
x = 20 + 1

Combine like terms: 20 + 1 = 21
x = 21

Simplifying
x = 21

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