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Simplifying 15x = 21xb Solving 15x = 21bx Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21bx' to each side of the equation. -21bx + 15x = 21bx + -21bx Combine like terms: 21bx + -21bx = 0 -21bx + 15x = 0 Factor out the Greatest Common Factor (GCF), '3x'. 3x(-7b + 5) = 0 Ignore the factor 3.Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(-7b + 5)' equal to zero and attempt to solve: Simplifying -7b + 5 = 0 Reorder the terms: 5 + -7b = 0 Solving 5 + -7b = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -7b = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7b = 0 + -5 -7b = 0 + -5 Combine like terms: 0 + -5 = -5 -7b = -5 Add '7b' to each side of the equation. -7b + 7b = -5 + 7b Combine like terms: -7b + 7b = 0 0 = -5 + 7b Simplifying 0 = -5 + 7b The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Solution
x = {0}
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