The product of a number and -7 amounts to seven times the sum of that number and 20. Find the number.

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

8 0

Answer: -10

Step-by-step explanation:

If you put it in an equation it would be -7x=7(x+20). You would then -7x to both sides to get -14x=140. Just divide -14 on both sides to isolate x. This equates to -10. If you put -10 back into the equation then it says that 70 is 7 times larger than 10. Which it is.

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Answer correctly and brainliest

hram777 [196]

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3 years ago

What is y+5x=6; x= -1,0,1

Rama09 [41]

See,u have y+5x=6 ( * =multiplication sign)
and x=-1,0,1
so ,u have to do is substitute x with numbers u have
so,for -1,u have y+5*-1=6
=y= 5+6= 11 ( u multiply 5 by -1 u get -5 but when u change the sides u get it as 5 ...so 5 + 6 =11)
(2)y+5*0=6

=y=6-0=6

(3)y +5*1=6
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( i hope this helped :) )

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Vikentia [17]

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Step-by-step explanation:

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