caroretanaox0n0c caroretanaox0n0c

03-03-2020
Mathematics

contestada

Please help. I’ll mark you as brainliest if correct!

Seven less than twice a number is the same as nine times the number. Find the number.

Respuesta :

alizemclean alizemclean

03-03-2020

Answer:

x = -1

Step-by-step explanation:

2x - 7 = 9x

Subtract 2x from both sides: -7 = 7x

Divide both sides by 7: -1 = x

Now plug in 7 for every value of x in the original equation to make sure you are correct:

2(-1) - 7 = 9(-1)

-2 - 7 = -9

-9 = -9

I hope this helps!

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