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

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


Simplifying
2x(3 + 4) + -7(x + 3) = 0

Combine like terms: 3 + 4 = 7
2x(7) + -7(x + 3) = 0

Reorder the terms for easier multiplication:
2 * 7x + -7(x + 3) = 0

Multiply 2 * 7
14x + -7(x + 3) = 0

Reorder the terms:
14x + -7(3 + x) = 0
14x + (3 * -7 + x * -7) = 0
14x + (-21 + -7x) = 0

Reorder the terms:
-21 + 14x + -7x = 0

Combine like terms: 14x + -7x = 7x
-21 + 7x = 0

Solving
-21 + 7x = 0

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 7x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 0 + 21
7x = 0 + 21

Combine like terms: 0 + 21 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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