Solve the following system of equations. Express your answer as an ordered pair in the format (a,b), with no spaces between the

Question

inna [77]

4 years ago

10

Solve the following system of equations. Express your answer as an ordered pair in the format (a,b), with no spaces between the

numbers or symbols
2x+7y=-1 and 4x-3y=-19

Mathematics

2 answers:

AVprozaik [17] · Answer 1 · 2021-12-26T06:00:48+03:00

AVprozaik [17]4 years ago

7 0

Multiply the equation 2x+7y=-1 by -2

add to othe equaiton
4x-3y=-19
<u>-4x-14y=2 +</u>
0x-17y=-17

-17y=-17
divide both sides by -17
y=1

sub back
2x+7y=-1
2x+7(1)=-1
2x+7=-1
minus 7 from both sides
2x=-8
divide both sides by 2
x=-4

x=-4
y=1
(x,y) is normal form
(-4,1) is answer

zzz [600] · Answer 2 · 2021-12-26T07:46:26+03:00

zzz [600]4 years ago

7 0

Answer:

The answer is (-4,1)

Step-by-step explanation: