anonymous
  • anonymous
Solve the system by the elimination method. Check your work. 3a + 5b - 7 = 0 a - 2b - 4 = 0
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
find the LCM for one of your variables and then subtract the equations from eachother
yolomcswagginsggg
  • yolomcswagginsggg
he first one is Let's solve for a. 3a+5b−7=0 Step 1: Add 7 to both sides. 3a+5b−7+7=0+7 3a+5b=7 Step 2: Add -5b to both sides. 3a+5b+−5b=7+−5b 3a=−5b+7 Step 3: Divide both sides by 3. 3a 3 = −5b+7 3 a= −5 3 b+ 7 3 Answer: a= −5 3 b+ 7 3
yolomcswagginsggg
  • yolomcswagginsggg
Let's solve for a. 3a+5b−7=0 Step 1: Add 7 to both sides. 3a+5b−7+7=0+7 3a+5b=7 Step 2: Add -5b to both sides. 3a+5b+−5b=7+−5b 3a=−5b+7 Step 3: Divide both sides by 3. 3a 3 = −5b+7 3 a= −5 3 b+ 7 3 Answer: a= −5 3 b+ 7 3

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
A. {(96/11, -5/11)} B. {(34/11, -5/11)} C. {(32/33, 5/11)} These are my choices.
anonymous
  • anonymous
well 1(3a+5b-7=0) -3(a-2-4=0 3a+5b-7=0 -3a+6b+12=-3 11+4b=-3 then 4b=8 4/8 2=b So after that you will input into equation a - 2(2) - 4 = 0 a-4-4=o a-0=0 a=0 is what i belive it would be so, 2=b 0=a
anonymous
  • anonymous
{(34/11, -5/11)}
Directrix
  • Directrix
@Brandon1001 Did you check to see if those answers work? I did not get that but I have to check my work.
anonymous
  • anonymous
is the answer
candyme
  • candyme
Solve the system by the elimination method. Check your work. 3a + 5b - 7 = 0 a - 2b - 4 = 0 I would multiply the bottom one by -3 -3a+6b+12=0 3a+5b-7=0 <----top equation The a's cancel out and we are left with 11b+5=0 11b=-5 \[b=-\frac{ 5 }{ 11 }\] Now plug that in to find a \[a-2(-\frac{ 5 }{ 11 })-4=0\] \[a+\frac{ 10 }{ 11 }-4=0\] \[a+\frac{ 10 }{ 11 }-\frac{ 44 }{ 11 } =0\] \[a-\frac{ 34 }{ 11 }=0\] \[a=\frac{ 34 }{ 11 }\]
candyme
  • candyme
So {(34/11, -5/11)} is correct

Looking for something else?

Not the answer you are looking for? Search for more explanations.