Solve the simultaneous equations: x+y=8 ; 3x-2y=9
Answers
Answered by
10
x + y = 8
x = 8 - y
3x - 2y = 9
3*(8 - y) - 2y = 9
24 - 3y - 2y = 9
24 - 5y = 9
24 - 9 = 5y
15 = 5y
15/5 = y
5 = y
x = 8 - y
= 8 - 5
= 3
Hope it will help you
Answered by
1
Answer:
x + y = 8
y = 8 - x
3x - 2y = 9
3x - 2(8 - x) = 9
3x - 16 + 2x = 9
5x - 16 = 9
5x = 9 + 16
5x = 25
x = 25/5
x = 5
y = 8 - x
= 8 - 5
= 3
Step-by-step explanation:
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