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
2 answers:
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
Answer:
The answer is (-4,1)
Step-by-step explanation:
You might be interested in
Answer: x^2 + 4x - 1
Step-by-step explanation: simplify it
Answer:
12.125
please mark me brainliest and follow me my friend.
Answer:
145
Step-by-step explanation:
Divide 48 by 7 = 6≅. then add 6 to 139. 145
There are 32 guests.
Proof: 1*8*2=32.