-4r-11=4r+21
Move 4r to the other side
Sign changes from +4r to -4r
-4r-4r-11=4r-4r+21
-4r-4r-11=21
-8r-11=21
Move -11 to the other side
Sign changes from -11 to +11
-8r-11+11=21+11
-8r=21+11
-8r=32
Divide both sides by -8
-8r/-8=32/-8
Answer: r=-4
Answer: x is, 2 6 8 10 20-- i think
Step-by-step explanation: y is, 2 3 4 6 10
Find the percentage. 5 percent of 10 is 0.5. 50 cents.
25 X 2(AMOUNT OF 5 PERCENT OF A DOLLAR IN A DOLLAR) = 50.
50 hours
5x - 18 + x = 90
6x = 108
x = 18 degrees
