7*l*2x-7*l=21

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Solution for 7*l*2x-7*l=21 equation:


Simplifying
7l * 2x + -7l = 21

Reorder the terms for easier multiplication:
7 * 2l * x + -7l = 21

Multiply 7 * 2
14l * x + -7l = 21

Multiply l * x
14lx + -7l = 21

Reorder the terms:
-7l + 14lx = 21

Solving
-7l + 14lx = 21

Solving for variable 'l'.

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

Reorder the terms:
-21 + -7l + 14lx = 21 + -21

Combine like terms: 21 + -21 = 0
-21 + -7l + 14lx = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(-3 + -1l + 2lx) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-3 + -1l + 2lx)' equal to zero and attempt to solve: Simplifying -3 + -1l + 2lx = 0 Solving -3 + -1l + 2lx = 0 Move all terms containing l to the left, all other terms to the right. Add '3' to each side of the equation. -3 + -1l + 3 + 2lx = 0 + 3 Reorder the terms: -3 + 3 + -1l + 2lx = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1l + 2lx = 0 + 3 -1l + 2lx = 0 + 3 Combine like terms: 0 + 3 = 3 -1l + 2lx = 3 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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