Step-by-step explanation: First you do 7 x 10 which equals 70 then 7 x -3x equals -27x. Next you do 5 x 10 which is 50 next you do 5 x -4x equals -20x. So your answer is 70-27x = 50-20x
Step by step: 2l+2w=282 l=2w-6 Plug in l 2(2w-6)+2w=282 4w-12+2w=282 6w-12=282 6w=282+12 w=294/6 w=49 Then plug in w 2l+2(49)=282 2l+98=282 2l= 184 l=92
