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FinnZ [79.3K]
2 years ago
15

Solve the simultaneous equations 2x+3y20 2x+5=10

Mathematics
1 answer:
ruslelena [56]2 years ago
6 0

Answer:

x=\frac{5}{2} \\y=5

( 5/2, 2 )

Step-by-step explanation:

Solve by substitution method:

2x+5=10\\\2x+3y=20

Solve 2x+5=10 for x:

2x+5=10

2x=10-5

2x=5

x=5/2

Substitute 5/2 for x in 2x+3y=20:

2x+3y=20

2(\frac{5}{2} )+3y=20

3y+5=20

3y=20-5

3y=15

y=15/3

y=5

∴ x=\frac{5}{2} and y=5

<em>hope this helps....</em>

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