Q. Solve using substitution.x=87x−8y=16(_____, _____)
Substitute x in equation: Substitute the value of x into the equation.We are given x=8, so we substitute 8 for x in the equation 7x−8y=16.7(8)−8y=16
Perform multiplication: Perform the multiplication to simplify the equation.7×8=56, so the equation becomes:56−8y=16
Isolate term containing y: Isolate the term containing y.To isolate the term −8y, we need to subtract 56 from both sides of the equation.56−8y−56=16−56−8y=−40
Solve for y: Solve for y by dividing both sides of the equation by -8").\(\newline\$-8y / -8 = -40 / -8\)\(\newline\)\(y = 5\)
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