chikitagee
would you use substitution or elimination to solve each of the following systems?
a. {y=2x+1
y=3x2
b. {x=3y1
3x+5y+4
c.{4x3y=4
3x+5y=16



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A.Avinash_Goutham
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1 st one i think both methods are cool

A.Avinash_Goutham
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2nd sub nd third elimination

chikitagee
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how are they substitution and elimination tho?

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

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

chikitagee
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sorry im new to all this algebra stuff lol

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

A.Avinash_Goutham
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wow um ther's an = missing

chikitagee
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opps b. {x=3y1
3x+5y+4

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

chikitagee
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omg i just did that ughh lol

chikitagee
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so what about the third problem how is it elimination?

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

chikitagee
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oh okay thanks :)