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mamaluj [8]
4 years ago
15

Y = x + 3 8x - 7y = 12 solve using subsitutuion

Mathematics
1 answer:
lapo4ka [179]4 years ago
3 0

Answer:

Videos of y = x + 3 8X - 7Y = 12 Solve Using Subsitutuion here is a link for you to wach how to do it

Step-by-step explanation:

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HELP PLEASE. solve the following equation and check your solution be sure all the work is in order to receive full credit solve
Fiesta28 [93]

Answer:

x=17

Step-by-step explanation:

24-3x=-27

1) Subtract 24 from both sides:

-3x=-51

2) Divide both sides by -3:

x=17

Footnotes:

Don't forget, your goal is to <em>isolate</em> the variable, or get it on one side of the equation

7 0
3 years ago
HELP QUICK DUE TODAY
Scilla [17]
Area = S^2

S(S-3) =70

S^2 -3S = 70
S^2 - 3s-70 = 0

(s-10) (s+7) = 0

s = 10, s=-7

S=10

original dimension was 10cm x 10cm


3 0
3 years ago
Which situation best represents the following equation 15+.15x&lt;25+.05x
Goryan [66]

Answer:

x<10

Step-by-step explanation:

First, we want to move all of our like terms to one side. In the inequality, the variable x on one side and our whole numbers on the other.

To do this you have to cancel out 0.5x on the right side. So you need to subtract 0.5 from both sides.

This leaves you with 15+x<25. Subtract 15 from both sides which leaves you with x<10

Hope this helps :)

5 0
4 years ago
PLEASE HELP MEEEEEE<br><br> f(x)=4x + 5<br> f (-3)
Dafna1 [17]

Answer:

evaluate the function with -3 as x value

Step-by-step explanation:

4(-3) + 5

-12 + 5

= -7

7 0
3 years ago
Read 2 more answers
Can you please answer ASAP I need the answer
Alika [10]

Answer:

I think x=8

Step-by-step explanation:

5(x+7)+15=90

90 because it's a 90 degree angle

5x+35+15=90

5x+50=90

5x=40

x=8

7 0
3 years ago
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