Solve for x and y:
x/2 +2y/3 =21 ; x - y/3 =3
Answers
Answered by
2
Step-by-step explanation:
x/2 +2y/3 =21 = 3x + 4y = 126 ---equation 1
x - y/3 = 3 = 3x -y = 9 --- equation 2
by equation 2
- y = 9 - 3x
y = 3x - 9 ---equation 3
by equation 1 and equation 3
= 3x + 4(3x - 9) = 126
= 3x + 12x - 36 = 126
= 15x = 126 - 36
= 15x = 90
= x = 4
y = 3
HOPE IT HELPS
Similar questions