3*-7-3a=2-5-7+7*3

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Solution for 3*-7-3a=2-5-7+7*3 equation:


Simplifying
3 * -7 + -3a = 2 + -5 + -7 + 7 * 3

Multiply 3 * -7
-21 + -3a = 2 + -5 + -7 + 7 * 3

Multiply 7 * 3
-21 + -3a = 2 + -5 + -7 + 21

Combine like terms: 2 + -5 = -3
-21 + -3a = -3 + -7 + 21

Combine like terms: -3 + -7 = -10
-21 + -3a = -10 + 21

Combine like terms: -10 + 21 = 11
-21 + -3a = 11

Solving
-21 + -3a = 11

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + 21 + -3a = 11 + 21

Combine like terms: -21 + 21 = 0
0 + -3a = 11 + 21
-3a = 11 + 21

Combine like terms: 11 + 21 = 32
-3a = 32

Divide each side by '-3'.
a = -10.66666667

Simplifying
a = -10.66666667

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