Q. Solve for y. Express your answer as a proper or improper fraction in simplest terms.−21−94y=81Answer: y=
Identify Given Equation and Goal: Identify the given equation and the goal.We are given the equation −21−94y=81 and we need to solve for y.
Isolate Term Containing y: Isolate the term containing y.To do this, we will add (1)/(2) to both sides of the equation to move the constant term to the right side.−(1)/(2)+(1)/(2)−(4)/(9)y=(1)/(8)+(1)/(2)This simplifies to:−(4)/(9)y=(1)/(8)+(1)/(2)
Convert to Common Denominator: Convert the right side to a common denominator to combine the fractions.The common denominator for 8 and 2 is 8, so we convert (1)/(2) to (4)/(8).−(4)/(9)y=(1)/(8)+(4)/(8)Now we can combine the fractions on the right side:−(4)/(9)y=(5)/(8)
Solve for y: Solve for y by dividing both sides by −94. To isolate y, we need to divide both sides by −94. Remember that dividing by a fraction is the same as multiplying by its reciprocal. y=85×(−49)
Multiply Fractions: Multiply the fractions to find the value of y.y=8×45×−(9)y=−3245