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Solve 2x + 5y = –13 3x – 4y = –8

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First thing is that you must get rid of one of the variables. you do this by looking at the 2 equations to see which one is easier to cancel. so look at y terms - what can you multiply the 1st equation to cancel out y terms
What do u mean? like what can i multiply by the y in the first equation?
  • hba
There are two methods you can work with 1)substitution. 2) Elimination. @JuanitaM Is showing you elimination :)

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OK.. but i dont understand how to do it.. whats the steps i need to do?
  • hba
We have to eliminate y. So What would you be multiplying both the equation with so then you can add or subtract to eliminate y and get x.
2x + 5y = -13 .............(1) 3x - 4y = -8 ................(2) If you multiply both sides of equation (1) by 3, and you multiply both sides of equation (2) by 3 then the coefficient of x will be 6 in both the resulting equations. Then we can take the next step to eliminate x. Can you do the first step?

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