-7(5+5a)=210

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Solution for -7(5+5a)=210 equation: 


Simplifying
-7(5 + 5a) = 210
(5 * -7 + 5a * -7) = 210
(-35 + -35a) = 210

Solving
-35 + -35a = 210

Solving for variable 'a'.

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

Add '35' to each side of the equation.
-35 + 35 + -35a = 210 + 35

Combine like terms: -35 + 35 = 0
0 + -35a = 210 + 35
-35a = 210 + 35

Combine like terms: 210 + 35 = 245
-35a = 245

Divide each side by '-35'.
a = -7

Simplifying
a = -7

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