3 years ago

What is the solution to the system of equations y=-3×-2 5×+2y=15

Mathematics

2 answers:

hichkok12 [17]3 years ago

8 0

Answer:

x= 19/11

y=35/11

Step-by-step explanation:

Anna007 [38]3 years ago

6 0

Answer: x = - 19

y = 55

Step-by-step explanation:

y = - 3x - 2 (1)

5x + 2y = 15 (2)

substitute y = - 3x - 2 into equation (2)

equation (2) becomes

5x + 2 (-3x - 2) = 15

5x + ( - 6x - 4) = 15

opening the bracket

5x - 6x - 4 = 15

collecting like terms

5x - 6x = 15 + 4

-x = 19

x = - 19

substituting x = - 19 into equation 1

y = - 3x - 2

y = - 3 (-19) - 2

y = 57- 2

y = 55

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