Question

2x+3y=69 6x+2y=186 find x

Answer 1

Answer:

x = 30 and y= 3

Step-by-step explanation:

6x + 2y = 186 (2x +3y =69)×3

6x + 2y =186 (6x + 9y = 207)

equation 1 -------- 6x + 2y =186

equation 2-------- 6x + 9y = 207

equation 2 - equation 1

9y -2y = 207 - 186

7y = 21

y = 3

Using y=3 in equation 1

6x +2×3 = 186

6x = 186 - 6

6x = 180

x = 30