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Step 1 -

[ distributive property ]
Step 2 -


Answered by : ❝ AǫᴜᴀWɪᴢ ❞
Answer:
see explanation
Step-by-step explanation:
Given the 2 equations
5x + y = 21 → (1)
x - 3y = 9 → (2)
Multiply (1) by 3 and add the result to (2) to eliminate y term
15x + 3y = 63 → (3)
Add (2) and (3) term by term
(x + 15x) + )- 3y + 3y) = (9 + 63)
16x = 72 ( divide both sides by 16 )
x = 4.5
Substitute x = 4.5 into (1) for corresponding value of y
22.5 + y = 21 ( subtract 22.5 from both sides )
y = - 1.5
Solution is (4.5, - 1.5 )
If these are diving fractions with these then it is 3 1/2 if they are not fractions then it is 0.22
I hope i helped!
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ok aw and a few of them have been missing out in all of the following is the comparatives on a new
Answer:
144 ft. i just had this question on my test .
Step-by-step explanation: