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garri49 [273]
3 years ago
5

How to do substitution

Mathematics
1 answer:
Brut [27]3 years ago
5 0
You solve for one variable like 
y-5x=2
"y=5x+2"

9x+3y=58
and you plug it in into the other equation
9x+3(5x+2)=58

You solve for x and then plug in your answer for x into the other equation
*let's imagine x=8*
then:
y-5(8)=2
and solve for y 
:D 


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23:
irina [24]

Answer:

(-\frac{3}{7}, 0) -- x intercept

(0,3) -- y intercept

Step-by-step explanation:

Given

y = 7x + 3

Required

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y = 7x + 3

0 = 7x + 3

Collect Like Terms

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Make x the subject

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Hence, the x intercept is: (-\frac{3}{7}, 0)

For the y intercept;

Set x = 0

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