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4x-2y=32 -3x-5y=-11. i need help fast.
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What method do you want to use?
elimination using adition or subtraction
Ok which one do you want eliminate first the x or the y?
x
Ok so you multiply the first equation by -3 then the second one by 4
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What do you get?
-12x-6y=32 -12x-20y=-11
?
it should be +6y on the top You also forgot to multiply the last number of each equation.
=-96 =-44
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Yup. -12x+6y=-96 -12x-20y=-44 Now subtract the first line to the second one. What do you get?
x+14y=150
-12x+12x -20y -6x=-44+96 If you subtract a negative it turns into a postive so now simplify it. You were close.
x-14y=-140/14=10
right?
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0r x-26y=-140
hello???!!
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