would you use substitution or elimination to solve each of the following systems?
a. {y=2x+1
y=3x-2
b. {x=3y-1
3x+5y+4
c.{4x-3y=4
3x+5y=16

Question

would you use substitution or elimination to solve each of the following systems?
 a. {y=2x+1 
      y=3x-2
 b. {x=3y-1 
      3x+5y+4
 c.{4x-3y=4
     3x+5y=16

anonymous · Answer

1 st one i think  both methods are cool

anonymous · Answer

2nd sub nd third elimination

anonymous · Answer

how are they substitution and elimination tho?

anonymous · Answer

substitution let the value of y in the A) 1st equation be the value of y in the second equation

anonymous · Answer

u kno sub method it means u put value of variable obatained from an eq into another eq......

anonymous · Answer

sorry im new to all this algebra stuff lol

anonymous · Answer

like check the secon eq......u have the eqn for x...... nd u can put that easily in 3x+5y+4

anonymous · Answer

wow um ther's an = missing

anonymous · Answer

opps b. {x=3y-1 
         3x+5y+4

anonymous · Answer

i think it's 3x+5y = 4

anonymous · Answer

omg i just did that ughh lol

anonymous · Answer

so what about the third problem how is it elimination?

anonymous · Answer

coz it's not substitution.............it's kinda hard to isolate a variable(x/y) from either of the eqns........

anonymous · Answer

oh okay thanks :)