how do i solve 14x+7y=99 x+y=6
Answers
Answered by
0
Answer:
multiply the second equation by 7
14x+7y=99,7x+7y=42
subtract equation second by one
7x=57
x=57/7
Answered by
1
Step-by-step explanation:
14x+7y = 99
(x+y = 6) × 7
14x+7y = 99
7x + 7y = 42
Subtracting
7x = 57
x = 57/7
Putting the value of x in eq (ii)
x+y = 6
57/7 + y = 6
y = 6-57/7
y = (42-57)/7
y = 15/7
x = 57/7
y = 15/7
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