-2(6a)-(-3)(-7a)=

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Solution for -2(6a)-(-3)(-7a)= equation:


Simplifying
-2(6a) + -1(-3)(-7a) = 0

Remove parenthesis around (6a)
-2 * 6a + -1(-3)(-7a) = 0

Multiply -2 * 6
-12a + -1(-3)(-7a) = 0

Remove parenthesis around (-7a)
-12a + -1 * -3 * -7a = 0

Multiply -1 * -3
-12a + 3 * -7a = 0

Multiply 3 * -7
-12a + -21a = 0

Combine like terms: -12a + -21a = -33a
-33a = 0

Solving
-33a = 0

Solving for variable 'a'.

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

Divide each side by '-33'.
a = 0

Simplifying
a = 0

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