Answer:
Alvin: 49
Elga: 40
Step-by-step explanation:
- The equation is 89 = x + (x-9).
- Remove the parenthesis and combine the like terms. 89 = 2x - 9
- Add 9 on both sides. 98 = 2x
- Divide by 2 on both sides. x = 49
- 49 is the age of Alvin. (49-9) 40 is the age of Elga.
7 multiplied by 11 is 77. And to get 462, (and based on the given information), we can conclude that it is 3*2*7*11.
Answer: n = -1 n = 3
Step-by-step explanation:
Answer:
x< -11/2
Step-by-step explanation:
Let's solve your inequality step-by-step.
2(4x+1)<3(2x−3)
Step 1: Simplify both sides of the inequality.
8x+2<6x−9
Step 2: Subtract 6x from both sides.
8x+2−6x<6x−9−6x
2x+2<−9
Step 3: Subtract 2 from both sides.
2x+2−2<−9−2
2x<−11
Step 4: Divide both sides by 2.
2x/2<−11/2
x< −11/2
