30-10(2a-6)=210

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Solution for 30-10(2a-6)=210 equation: 


Simplifying
30 + -10(2a + -6) = 210

Reorder the terms:
30 + -10(-6 + 2a) = 210
30 + (-6 * -10 + 2a * -10) = 210
30 + (60 + -20a) = 210

Combine like terms: 30 + 60 = 90
90 + -20a = 210

Solving
90 + -20a = 210

Solving for variable 'a'.

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

Add '-90' to each side of the equation.
90 + -90 + -20a = 210 + -90

Combine like terms: 90 + -90 = 0
0 + -20a = 210 + -90
-20a = 210 + -90

Combine like terms: 210 + -90 = 120
-20a = 120

Divide each side by '-20'.
a = -6

Simplifying
a = -6

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