SOLUTION: Hi i need help on solving using substitution for two problems:
x+y=1
2x+3y=-4
Please show all work thank you!
Algebra.Com
Question 717492: Hi i need help on solving using substitution for two problems:
x+y=1
2x+3y=-4
Please show all work thank you!
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
y=-x+1
2x+3y=-4
2x+3(-x+1)=-4
2x-3x+3=-4
-x=-7
x=7
-----------
2(7)+3y=-4
14+3y=-4
3y=-4-14
3y=-18
y=-18/3
y=-6
(7,-6)
-------------
x+y=1
7-6=1
RELATED QUESTIONS
PLEASE HELP!!! I need help solving the following problems:
1. y=2x+7
y=5x+4
2. (answered by elima)
i need your help in solving this equation: using comparion method
y=2x-3
y=-1/2x+4
(answered by MathLover1)
hi im in algebra honors and i thought i needed immediate help on solving linear systems... (answered by Alan3354)
Could someone please help me with a few problems?These are Systems of equations,and these (answered by algebrapro18)
I need help on steps for solving a system of equations in substitution,elimination,and... (answered by MathLover1)
Hi, I need help on solving a linear system by substituting, graphing, and addition(linear (answered by psbhowmick)
I need help solving the following problems using substitution AND elimination.
1.... (answered by Fombitz)
2. X = 2-seat tables
y = 4-seat tables
2x + 4y = 56 (max)
x + y = 17
Solve... (answered by haileytucki)
I need help solving this equation using the substitution method. Can you please answer it (answered by mananth)