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3 years ago

-3x + 3y = 6 y= 4x + 5

Mathematics

2 answers:

Katarina [22]3 years ago

5 0

Answer:

-3x+3*(4x+5)=6

-3x+12x+15=6

9x=6-15

9x=-9

x=-9/9

x=-1

y=4x+5

y=4*(-1)+5

y=-4+5

y=1

sesenic [268]3 years ago

3 0

Answer:

Step-by-step explanation:

-3x + 3y = 6.......(1)

y= 4x + 5............(2)

Putting (2) in (1)

-3x + 3(4x + 5) = 6

-3x + 12x + 15 = 6

9x = 6 -15

9x = -9

x = -9/9

x = -1

Putting x in (2)

y= 4x + 5

y = 4(-1) + 5

y = -4 + 5

y = 1

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