Question

3x+5y=131 6x+2y=140

Answer 1

x = 18.25

y = 15.25

Explanation:

System of Equations:

Solve:

3x + 5y = 131 [1]

6x + 2y = 140 [2]

Multiplying [1] by -2:

-6x - 10y = -262 [3]

Adding [2] and [3]:

-8y = -122

y = -122/(-8)=15.25

y = 15.25

Substituting in [1]

3x + 5(15.25) = 131

3x + 76.25 = 131

3x = 54.75

x = 54.75/3

x = 18.25

Thus:

x = 18.25

y = 15.25