2/7x-23)+5x = 18 (x-1)​

x= - 35 over 89

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2

7

x−23+5x=18(x−1)

2

7

x+−23+5x=(18)(x)+(18)(−1)(Distribute)

2

7

x+−23+5x=18x+−18

(

2

7

x+5x)+(−23)=18x−18(Combine Like Terms)

37

7

x+−23=18x−1837

7

x−23=18x−18

Step 2: Subtract 18x from both sides.

37

7

x−23−18x=18x−18−18x

−89

7

x−23=−18

Step 3: Add 23 to both sides.

−89

7

x−23+23=−18+23

−89

7

x=5

Step 4: Multiply both sides by 7/(-89).

(

7

−89

)*(

−89

7

x)=(

7

−89

)*(5)

x=

−35

89

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!