3l+7=-l-9

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Solution for 3l+7=-l-9 equation:


Simplifying
3l + 7 = -1l + -9

Reorder the terms:
7 + 3l = -1l + -9

Reorder the terms:
7 + 3l = -9 + -1l

Solving
7 + 3l = -9 + -1l

Solving for variable 'l'.

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

Add 'l' to each side of the equation.
7 + 3l + l = -9 + -1l + l

Combine like terms: 3l + l = 4l
7 + 4l = -9 + -1l + l

Combine like terms: -1l + l = 0
7 + 4l = -9 + 0
7 + 4l = -9

Add '-7' to each side of the equation.
7 + -7 + 4l = -9 + -7

Combine like terms: 7 + -7 = 0
0 + 4l = -9 + -7
4l = -9 + -7

Combine like terms: -9 + -7 = -16
4l = -16

Divide each side by '4'.
l = -4

Simplifying
l = -4

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