Which equation, when solved, results in a different value of x than the other three?
7
3
3 7
-20
20

6(2x+y)+2(x+4y) how can i solve this

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?