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20 votes
20 votes
3x + 5y = 7
How to solve it

User Aron Karmer
by
2.3k points

1 Answer

29 votes
29 votes

Answer:

x=1 and y=4/5

Explanation:

Given system of equations

3x+5y=7

5x+10y=13

Multiply first equation by 2

2(3x+5y)=2(7)

6x+10y=14

Eliminate y-variable to get "x"

6x+10y=14

- 5x+10y=13

x = 1

Substitute x=1 into either equation and find "y"

3x+5y=7

3(1)+5y=7

3+5y=7

5y=4

y=4/5

Therefore, x=1 and y=4/5

User Syed Ahmed Jamil
by
2.0k points