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Mathematics, 10.07.2021 01:40 LEXIEXO

Sum and difference identities​


Sum and difference identities​

ansver
Answers: 2
ansver
Answer from: Quest

the solution is the point (1,-3)

step-by-step explanation:

we have

3x-y=6 > equation a

y=x-4 > equation b

adds equation a and equation b

3x-y=6\\y=x--y+y=6+x-4\\3x=2+x\\3x-x=2\\2x=2\\x=1

substitute the value of x in equation b to find the value of y

y=(1)-4=-3

the solution is the point (1,-3)

ansver
Answer from: Quest

12

step-by-step explanation:

ansver
Answer from: Quest

9987

step-by-step explanation:

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