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IRISSAK [1]
1 year ago
7

7+4x= -5 helppppppppppppp

Mathematics
2 answers:
bekas [8.4K]1 year ago
8 0

Answer:

-3

Step-by-step explanation:

because if you subtract 7 from both side you get 4x=-12 then divide both sides by 4 and you get x=-3

Zepler [3.9K]1 year ago
7 0
X=-3

7+4x=-5
-7 -7
4x=-12
/4. 4/
X=-3
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3 years ago
Find the sum of all numbers from 150 to 200 which are divisible by7​
podryga [215]

Step-by-step explanation:

The sum is 1225

Solution : 

The numbers from 150 to 200 divisible by 7 are 154,161 ,168,…., 196

Here, a=154,d=7a=154,d=7 and tn=196tn=196

tn=a+(n−1)dtn=a+(n-1)d …(Formula )

∴196=154+(n−1)×7∴196=154+(n-1)×7 …(Substituting the values )

∴196−154=(n−1)×7∴196-154=(n-1)×7

∴427=n−1∴427=n-1 ∴n−1=6∴n-1=6 ∴n=7∴n=7

Now, we find the sum of 7 numbers.

Sn=n2[t1+tn]Sn=n2[t1+tn] ...(Formula )

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8 0
3 years ago
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Answer:

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Answer:

prt

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
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