3(e-7)=-9

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Solution for 3(e-7)=-9 equation: 


Simplifying
3(e + -7) = -9

Reorder the terms:
3(-7 + e) = -9
(-7 * 3 + e * 3) = -9
(-21 + 3e) = -9

Solving
-21 + 3e = -9

Solving for variable 'e'.

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

Add '21' to each side of the equation.
-21 + 21 + 3e = -9 + 21

Combine like terms: -21 + 21 = 0
0 + 3e = -9 + 21
3e = -9 + 21

Combine like terms: -9 + 21 = 12
3e = 12

Divide each side by '3'.
e = 4

Simplifying
e = 4

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