Well first you have to add common like terms in this case 2r and -6r to get -4r now your equation is -4r+8=40, now subtract 8 from both sides to leave r by itself and get -4r=32, now divide both sides by -4 to get r=-8
Hope this helps
Answer:
Step-by-step explanation:
ok im not sure if this is it but 148.41315910
Answer:
d x=+-3
Step-by-step explanation:
divide both sides by 2
