Simplify Equation: Simplify both sides of the equation.On the left side, distribute the negative sign inside the parentheses.16−r−2=10+3(r−7)Combine like terms on the left side.14−r=10+3(r−7)
Distribute and Combine: Distribute the 3 on the right side of the equation.14−r=10+3r−21Combine like terms on the right side.14−r=3r−11
Add and Combine: Add r to both sides to get all the r terms on one side.14−r+r=3r−11+r14=4r−11
Isolate r Term: Add 11 to both sides to isolate the term with r. 14+11=4r−11+1125=4r
Solve for r: Divide both sides by 4 to solve for r.425=44r6.25=r
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