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Deffense [45]
3 years ago
7

5x + 2y = -10 3x + y = 66 please show work

Mathematics
2 answers:
liq [111]3 years ago
8 0

Answer:

x=142, y=-360. (142, -360).

Step-by-step explanation:

5x+2y=-10

3x+y=66

----------------

5x+2y=-10

-2(3x+y)=-2*66

-----------------------

5x+2y=-10

-6x-2y=-132

-------------------

-x=-142

x=142

3(142)+y=66

426+y=66

y=66-426

y=-360

Sauron [17]3 years ago
3 0

Answer:

1- 5x+2y+−2y=−10+−2y

5x=−2y−10

\frac{5}{5}= \frac{-2y-10}{5}

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

2-  3x+y+−y=66+−y

3x=−y+66

\frac{3x}{3} = \frac{-y+66}{3}

x=\frac{-1}{3}y+22

Step-by-step explanation:

This is the answers :)

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