STEP 2: solve linear equations by elimination. use equation 2 and equation answer from step 1. add the two equations together. the x terms will cancel out. solve for y.
4x + 8y= 53 -4x - 6y= -42
2y= 11 divide both sides by 2 y= 11/2 divide y= $5.5 per video game
STEP 3: substitute y answer from step 2 into either original equation to solve for x. 2x + 3y= $21 2x + 3(5.50)= 21 2x + 16.50= 21 subtract 16.50 from both sides 2x= 4.50 divide both sides by 2 x= $2.25 per movie
If a single board measures 1/12 of a meter then it would take 12 boards to make a meter. Since, the stack is 2 meters high. You would multiply 12 and 2 to get 24. There is 24 boards in the stack.