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Simplifying 2x8 + 7x4 = 72 Reorder the terms: 7x4 + 2x8 = 72 Solving 7x4 + 2x8 = 72 Solving for variable 'x'. Reorder the terms: -72 + 7x4 + 2x8 = 72 + -72 Combine like terms: 72 + -72 = 0 -72 + 7x4 + 2x8 = 0 Factor a trinomial. (-8 + -1x4)(9 + -2x4) = 0Subproblem 1
Set the factor '(-8 + -1x4)' equal to zero and attempt to solve: Simplifying -8 + -1x4 = 0 Solving -8 + -1x4 = 0 Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -1x4 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -1x4 = 0 + 8 -1x4 = 0 + 8 Combine like terms: 0 + 8 = 8 -1x4 = 8 Divide each side by '-1'. x4 = -8 Simplifying x4 = -8 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(9 + -2x4)' equal to zero and attempt to solve: Simplifying 9 + -2x4 = 0 Solving 9 + -2x4 = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x4 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x4 = 0 + -9 -2x4 = 0 + -9 Combine like terms: 0 + -9 = -9 -2x4 = -9 Divide each side by '-2'. x4 = 4.5 Simplifying x4 = 4.5 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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