여보세요! 방정식에 도움이 필요합니다. 나는 대수학에 끔찍하지만 ... 도와 주셔서 감사합니다 : 3 5 ( x - 2) = 3 ( x+ 6) - 8
A. 10
B. 1
C. - 1
D. 0
7 (r-2) -9 (r-1) = 3 (5-r) + (r-8)
A. 해결책 없음
B. 모든 실수
C. 0
D. -5

Step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

i need more details sorry

step-by-step explanation: