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24x\times \frac{5}{4}-6\times 7=24\times 6+24x\left(-\frac{1}{24}\right)
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 24x, the least common multiple of 4,4x,x,24.
30x-6\times 7=24\times 6+24x\left(-\frac{1}{24}\right)
Multiply 24 and \frac{5}{4} to get 30.
30x-42=24\times 6+24x\left(-\frac{1}{24}\right)
Multiply -6 and 7 to get -42.
30x-42=144+24x\left(-\frac{1}{24}\right)
Multiply 24 and 6 to get 144.
30x-42=144-x
Multiply 24 and -\frac{1}{24} to get -1.
30x-42+x=144
Add x to both sides.
31x-42=144
Combine 30x and x to get 31x.
31x=144+42
Add 42 to both sides.
31x=186
Add 144 and 42 to get 186.
x=\frac{186}{31}
Divide both sides by 31.
x=6
Divide 186 by 31 to get 6.