-7(10+6x)=-280

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Solution for -7(10+6x)=-280 equation: 


Simplifying
-7(10 + 6x) = -280
(10 * -7 + 6x * -7) = -280
(-70 + -42x) = -280

Solving
-70 + -42x = -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 + -42x = -280 + 70

Combine like terms: -70 + 70 = 0
0 + -42x = -280 + 70
-42x = -280 + 70

Combine like terms: -280 + 70 = -210
-42x = -210

Divide each side by '-42'.
x = 5

Simplifying
x = 5

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