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anonymous
 one year ago
Solve the system by the elimination method. Check your work.
3a + 5b  7 = 0
a  2b  4 = 0
anonymous
 one year ago
Solve the system by the elimination method. Check your work. 3a + 5b  7 = 0 a  2b  4 = 0

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0find the LCM for one of your variables and then subtract the equations from eachother

yolomcswagginsggg
 one year ago
Best ResponseYou've already chosen the best response.0he 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
 one year ago
Best ResponseYou've already chosen the best response.0Let'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

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A. {(96/11, 5/11)} B. {(34/11, 5/11)} C. {(32/33, 5/11)} These are my choices.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0well 1(3a+5b7=0) 3(a24=0 3a+5b7=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 a44=o a0=0 a=0 is what i belive it would be so, 2=b 0=a

Directrix
 one year ago
Best ResponseYou've already chosen the best response.0@Brandon1001 Did you check to see if those answers work? I did not get that but I have to check my work.

candyme
 one year ago
Best ResponseYou've already chosen the best response.1Solve 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+5b7=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 \[a2(\frac{ 5 }{ 11 })4=0\] \[a+\frac{ 10 }{ 11 }4=0\] \[a+\frac{ 10 }{ 11 }\frac{ 44 }{ 11 } =0\] \[a\frac{ 34 }{ 11 }=0\] \[a=\frac{ 34 }{ 11 }\]

candyme
 one year ago
Best ResponseYou've already chosen the best response.1So {(34/11, 5/11)} is correct
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