X+a=b
you want to isolate x so subtract a from both sides
x=b-a
Answer: D. (8, 4)
Step-by-step explanation:
Answer:
exact form: 9988/23
decimal form: 434.26
mixed number form: 434 6/23
Step-by-step explanation:
11 more than five of a certain number would be written as 5x+11 and it is (means equal to) twenty more than two times that number, which would be 2x+20. So the equation would be
5x+11=2x+20
-2x -2x (get the x's on one side)
3x+11=20
-11 -11 (get the numbers on one side)
3x=9
/3 /3 (divide by 3, so you can get the x by itself)
X=3 (the number is 3)
