Ihave no idea how to do these problems. i keep on getting them confused somehow. a sista out! ❤️

You use the process of substitution to solve these problems

2y = 4x + 12 simplify

y = 2x + 6

now why can be plugged into the second equation

2x - (2x + 6) = -6

2x - 2x - 6 = -6

-6 = -6

therefore x is zero

plug it in

2y = 0 + 12

y = 6

what we realize though is

2y = 4x + 12

y = 2x + 6 (multiply by two to receive 2y = 4x + 12)

They are the same graph so there are infinite solutions but plugging in (-4,2) shows it is not a solution.

i would need to see the dot plot : )

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98