2x-3y/4=3,5x=2y+7 solve by subsitution method
Answers
Answered by
2
Step-by-step explanation:
1)2x-3y/4=3
=y=3-2x*4/3
2)5x=2y+7
=x=2+7/5
Answered by
3
Answer:
x=45/19 y=46/19
Step-by-step explanation:
(2x-3y)/4=3 5x=2y+7 → (2)
2x-3y=12
2x=12-3y
x=6 -3 y/2 → (1)
Substitute (1) in (2)
5(6-3y/2)=2y+7
30 - 15y/2 =2y + 7
23=19y/2
19y=46
y=46/19
From (1)
x=6 -3y/2
x=6 - (3×46/2×19)
x=6- 69/19
x=45/19
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