Answer:
{x,y} = {2,1/2}
Explanation:
Solve by Substitution :
1. Solve equation [2] for the variable x
[2] x = -2y + 3
2. Plug this in for variable x in equation [1]
[1] 4•(-2y+3) - 2y = 7
[1] - 10y = -5
3.Solve equation [1] for the variable y
[1] 10y = 5
[1] y = 1/2
By now we know this much :
x = -2y+3
y = 1/2
4.Use the y value to solve for x
x = -2(1/2)+3 = 2
Solution :
{x,y} = {2,1/2}