SOLUTION: eleminatio linear equation
3x + y=-1
2x +-y= 3
substitution
3x + 2y=1
7x + 6y=2
Algebra.Com
Question 490914: eleminatio linear equation
3x + y=-1
2x +-y= 3
substitution
3x + 2y=1
7x + 6y=2
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
3x + y=-1
2x +-y= 3
--------------- Add
5x = 2
x = 2/5 etc.
--------------
substitution
3x + 2y=1 --> 9x + 6y = 3 --> 6y = 3 - 9x
7x + 6y=2
------------
Sub for 6y in Eqn 2
7x + (3-9x) = 2
-2x = -1
x = 1/2
RELATED QUESTIONS
solve by substitution:
2x=2y=2... (answered by jim_thompson5910)
Solve by substitution:
2x+2y=2... (answered by joecbaseball)
substitution method 2x + 2y =2 3x -y =... (answered by Alan3354,josgarithmetic)
1) Use the method of substitution to solve the system of linear equations
3x-y=5... (answered by MathLover1)
solve the system of equation using substitution.
y= 2/3x+1
y=... (answered by stanbon)
2x+2y= 2/3
y=3x-1
(answered by Cromlix)
I need help desperately, I was absent throughout this entire section :(
please help.... (answered by edjones)
:( I need help desperately, I was absent throughout this entire section :(
please help. (answered by math-vortex)
simplify the following:
1) -(-3x+y-5)+(7x+2y+9)-2(7x+3)
2)... (answered by mananth)