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chikitagee

  • 3 years ago

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

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  1. A.Avinash_Goutham
    • 3 years ago
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    1 st one i think both methods are cool

  2. A.Avinash_Goutham
    • 3 years ago
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    2nd sub nd third elimination

  3. chikitagee
    • 3 years ago
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    how are they substitution and elimination tho?

  4. SmileD
    • 3 years ago
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    substitution let the value of y in the A) 1st equation be the value of y in the second equation

  5. A.Avinash_Goutham
    • 3 years ago
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    u kno sub method it means u put value of variable obatained from an eq into another eq......

  6. chikitagee
    • 3 years ago
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    sorry im new to all this algebra stuff lol

  7. A.Avinash_Goutham
    • 3 years ago
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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

  8. A.Avinash_Goutham
    • 3 years ago
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    wow um ther's an = missing

  9. chikitagee
    • 3 years ago
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    opps b. {x=3y-1 3x+5y+4

  10. A.Avinash_Goutham
    • 3 years ago
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    i think it's 3x+5y = 4

  11. chikitagee
    • 3 years ago
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    omg i just did that ughh lol

  12. chikitagee
    • 3 years ago
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    so what about the third problem how is it elimination?

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

  14. chikitagee
    • 3 years ago
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    oh okay thanks :)

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