Given,
9(x+1) = 25 + x
expanding,
9x + 1 = 25 + x
bringing x to left hand side and taking 1 to right hand side with change in their respective signs,
9x - x = 25-1
=> 8x = 24
transposing 8 ,
=> x = 24/8 = 3
Hence x = 3
Commutative Property of Addition
38+0.11m=51+0.09m
0.02m=13
m=650 miles
If Austin will drive more than 650 miles he can choose the second plan of car renting.
If he plan todrive less than 650 miles then it's more preferable to choose the first plan of car renting
Answer:
The answer is: Yes
Step-by-step explanation:
1. Substitute the 2's for the x's.
2. Substitute the 3's for the y's
3. You get 4-9= -5
4. Do the same for the second problem.
5. 8-12= -4
6. Both problems are correct once the substitutions are made, therefore the answer is "Yes".
The strategy is called expanding notation because you are expanding that problem into small equations :)
