Could someone guide me through this one plz a system of two equations is shown below: equation c: a = 4b + 5 equation d: a = 6b − 2 what value of a can be substituted into equation d to solve the system of equations? 4b + 5 6b − 2 4b 6b

the answer is 4b +5

Step-by-step explanation:

a = 4b +5  > first equation

a = 6b - 2  > second equation

Given the first equation a= 4b +5

Here 'a' is alone

In substitution method we substitute the first equation in second equation

So we substitute a= 4b+5 in the place of 'a' in second equation

The value 4b+5 can be substituted in the second equation to solve the system of equations

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!