Combine Like Terms: Combine like terms that contain the variable j on the left side of the equation.−2+(43+21)j=2jTo combine the fractions, find a common denominator, which is 4.−2+(43+42)j=2j−2+(45)j=2j
Find Common Denominator: Now, we want to get all the terms with j on one side and the constant terms on the other side. Let's move the (5/4)j term to the right side by subtracting it from both sides.−2=2j−(5/4)jTo subtract the fractions, they need to have the same denominator. The common denominator is 4, so we convert 2j to (8/4)j.−2=(8/4)j−(5/4)j
Move Terms to Respective Sides: Subtract the j terms on the right side.−2=(48−45)j−2=(43)j
Subtract Terms: To solve for j, divide both sides by (3/4), which is the same as multiplying by the reciprocal, 4/3.−2×(4/3)=(3/4)j×(4/3)−8/3=j
More problems from Solve linear equations: mixed review