3 years ago

I need help showing my work for the following system by substitution:

1 answer:

4 0

Answer:

$y = 4x - 2 .........(eqn1)\\ y = 3x + 6.........(eqn2) \\ sub \: 1 \: in \: eqn \: 2 \\ y = 3x + 6 \\ 4x - 2 = 3x + 6 \\ 4x - 3x = 6 + 2 \\ x = 8 \\ sub \: x \: in \: eqn \: 2 \\ y = 3x + 6 \\ y = 3(8) + 6 \\ y = 24 + 6 \\ y = 30$

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viktelen [127]

Answer:

Julien scored 17 goals (9 more than Nicole)

Step-by-step explanation:

Nicole: 8 goals (x-9) = 8

Julien: x-9 = y

Nicole:

x-9=8

x=17

Julien:

17-9 = 8

Julien scored 9 more goals than Nicole giving Julien 17 goals on the season and Nicole 8 goals

5 0

3 years ago

Please answer ASAP if you want 5 stars and brainliest.

Mice21 [21]

I did these very quickly on paper so I hope you can read my handwriting..

Answers are as follows, and I'll attach the work.. Hope it helps.

1. 4
2. 21.25