6. solve the system using substitution.
4x=3y-2
18=3x+y
a.(4,6)
b.(2.5,4)
c.(3,9)
d.(3,-9)

Equation 1)  4x = 3y - 2
Equation 2)  18 = 3x + y

Turn both equations into ax + by = c form.

Subtract 3y from both sides on equation 1, as well as subtracting 3x from both sides on the 2nd equation. Then, subtract 18 from both sides, and then subtract y from both sides, on the 2nd equation.

1)   4x - 3y= -2

2)  -3x - y = -18

Multiply ALL of equation 2 by 3.

2)  3(-3x - y = -18)

Simplify.

2)  -9x - 3y = -54
1)  4x - 3y = -2

Subtract equations from one another.

-13x = -52

Divide both sides by -13/

x = 4

Plug in 4 for x in the first equation.

4x - 3y = -2

4(4) - 3y = -2

Simplify.

16 - 3y = -2

Subtract 16 from both sides.

-3y = -18

Divide both sides by -3.

y = 6

So, x = 4, y = 6

A : (4, 6)

~Hope I helped!~

The skating rink rented 872 pairs of skates during april and may.why? : if the skating rink rented three times the pair of skates in april during may, they rented 654 skates. 218 x 3 = 654then, if they want to know how many they rented during both april and may, then you just add 654 (may) and 218 (april) to give you 872 pairs of skates for both months.654 + 218 = 872hope this !