Question

Given the system of equation 7x-3y = 48 .......Eq 1 2x+ y = 35 ........Eq 2 __________ To solve this system by elimination and multiplication , i can ...............................

Answer 1

x = 11.75

y = 11.5

Explanation:

By Elimination Method:

7x - 3y = 48 ---- (1)

-

2x + y = 35 ----- (2)

Multiply equation (1) by 2 and equation (2) by 7

14x - 6y = 96

-

14x + 7y = 245

0 -13y = -149

-13y = -149

y = -149/-13

y = 11.5

From equation (2); replace y with 12

2x + y = 35

2x + 11.5 = 35

2x = 35 - 11.5

2x = 23.5

x = 11.75