2 years ago

Solve the simultaneous equations8x – 3y = 303x + y = 7

1 answer:

6 0

Solve for y in 3x+7=y

y=7−3x

Substitute y=7−3x

y=7−3x into 8x−3y=30

8x−3y=30.

17x−21=30

Solve for x

x in 17x−21=30

17x−21=30.

X=3

Substitute x=3 into y=7−3x

y=-2

Therefore,

x=3

y=−2

You might be interested in

Solving fp<br> Algebra 2<br> I do not understand how to solve this, could someone please explain?

Olenka [21]

$f(x) = \sqrt{x + 2}$
What's The Fixed Point? Well, Let's Assume X=0, this is our point.

$f(0) = \sqrt{0 + 2} \\ f(0) = \sqrt{2} \\ this \: is \: our \: fixed \: point \: \\ (0, \sqrt{2} )$
OR

$f(p) = \sqrt{p + 2} \\ \\ or \: \sqrt{x + 2} = 0 \\ ( \sqrt{x + 2} ) ^{2} = {0}^{2} \\ x + 2 = 0 \\ x = - 2$
I'm unaware of the nature of the question, so here are some different ways a fixed point is found based on the merits of the question.

4 0

2 years ago

How any shapes s in a pentagon

Vlad [161]

There are 5 sides on a pentagon. penta=5 sides

8 0

2 years ago

A basketball player gets 2 free-throw shots when she is fouled by a player on the opposing team. She misses the first shot 40% o

yan [13]

<span>The probability of missing the first shot is 40%. When she misses the first shot, the probability of missing the second shot is very, very low, only 5%. That means that the probability of missing both shots must be much smaller than the probability of missing the first shot.

40/100 * 5/100
0.4 * 0.05
= 0.02
= 2%</span>

5 0

3 years ago

Solve for n 25/n = 5/8

Sveta_85 [38]

Answer:

n=40

Step-by-step explanation:

25/n=5/8

25/5=5

n/5=8

n=40

3 0

2 years ago

Read 2 more answers

The volume of a rectangular prism is given by the formula V = lwh, where / is the length of the prism, w is the width, and his

Vedmedyk [2.9K]

The answer would be option D.
10a^3 + 91a^2 + 54a - 792

6 0

2 years ago

Solve the simultaneous equations8x – 3y = 303x + y = 7​

Solve the simultaneous equations8x – 3y = 303x + y = 7