emilyruddle0905
emilyruddle0905 emilyruddle0905
  • 10-01-2018
  • Mathematics
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solving y=6x-11-2x-3y=-7 by substitution

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choixongdong
choixongdong choixongdong
  • 10-01-2018
y=6x-11
-2x-3y=-7
substitute y=6x-11 into -2x-3y=-7

-2x-3y=-7
-2x-3(6x-11)=-7
-2x - 18x + 33 = -7
-20x = -40
     x = 2

y = 6x -11
y = 6(2) - 11
y = 1

answer
x = 2 and y =1

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