3 years ago

Solve the following equation; 6x+3y=13 -9x-4y=-17

Mathematics

2 answers:

Lana71 [14]3 years ago

8 0

You can not do the first one because the things do not add up

mixas84 [53]3 years ago

6 0

First solve for y with first equation:

3y = 13-6x so y = 13/3-2x

Plug that in with 2nd equation:

-9x-4(13/3-2x)=-17

-9x-52/3-8x=-17

-17x=-34 1/3

x = <u>34 1/3 </u>
17

x = 103/51

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