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Solve the simultaneous equations 2x+2y=18 3x+2y=22
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3 votes
3 votes
Solve the simultaneous equations
2x+2y=18
3x+2y=22

User Matti
by
3.5k points

1 Answer

6 votes
6 votes

Answer:

(4, 5).

Explanation:

2x+2y=18

3x+2y=22

Subtract first one from second:

3x - 2x = 22 - 18

x = 4

Plug this into first equation:

2(4) + 2y = 18

2y = 18 - 8 = 10

y = 5.

Check this result in second equation

3(4) + 2(5)

= 12 + 10

= 22.

So its correct.

User Kushtrim
by
3.4k points
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