Solve the given system of equations using matrices 3x + 2y = 9
5x -5 = 15
(x, y) = (,)

Step-by-step explanation:

Solve for x in the equation.

Add 5 to both sides of the equation

Add 15 and 5

divide each term by 5

Simplify

Replace all occurrences of x in 3x+2y=9

Solve for y

Subtract 12 on both sides

Divide both sides by 2

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value