Please Can You Solve? See Instructions Below 7x+y =1 3x+2y=-9
Solve the system of equation of equations using the substitution method. If answer is unique solution present it as an ordered pair (x,y) if not specify whether the answer is no solution or infinitely many solutions
1 Answer - Sort by: Date | Rating
The solution is as follows:
7x+y=1 eq 1
y=1-7x put in the second equation
3x+2y=-9
3x+2(1-7x)=-9
3x+2-14x=-9
-11x=-11
x=1 put this value in the eq 1
7x+y=1
7(1)+y=1
y=1-7
y=-6
So the answer is (1,-6)
7x+y=1 eq 1
y=1-7x put in the second equation
3x+2y=-9
3x+2(1-7x)=-9
3x+2-14x=-9
-11x=-11
x=1 put this value in the eq 1
7x+y=1
7(1)+y=1
y=1-7
y=-6
So the answer is (1,-6)
0
1
- Axis Of Symmetry Is -10 What Is Quadratic Function?
- What Is A Number Express Scientific Notation?
- Will Australians Get A Government Bonus Before Christmas 2009?
- What Three Numbers Have A Mode Of Ten?
- How Plane Stop?
- Y + 8 Equals X - 3 What Is Y?
- How Many Counters Equal A Set Of 45?
- If 50 Counters Are The Whole Set, What Fraction Of The Set Is 45 Counters?
- How To Solve Equality?
- How To Solve Mixture Problem?
- How Do You Work Out Missing Number In A Sequence?
- At 6% Annual Inflation Rate, An Item Costing Rs. 100 Today, Would Cost Rs. _______ After Two Years?
- Is Zero Greater Than Or Less Than One Third Of A Number?
- What Is The Fraction Of 25 Of 1 Hour?
- What Number Is 12% Of 72?
- How Do I Find The Y Intercept In Algebra?
- What Fraction Does 1.167 Turn Into?
- How Do You Get The Instructions For A 777airplane?
- How Can I Get Instructions For Spotbot?
- What Are The Instructions To RISK?
- I Need Help In Writing Instructions On How To Use Shades. Can You Help Me?
- I Need Instructions On How To Operate A Tamagotchi?
- Are There Any Instructions On How To Defend Ourselves Against Aliens?
- Where Can I Get Instructions To A FantaSea Pool?
- What's Bobbin Threading Instructions?
New Comment - Comments are editable for 5 min.