PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics

2 answers:

timurjin [86]3 years ago

8 0

Answer:

x = -11

Step-by-step explanation:

$\frac{-x+10}{3}=7\\\\3(\frac{-x+10}{3})=3(7)\\\\-x+10=21\\\\-x+10-10=21-10\\\\-x=11\\\\\frac{-x}{-1}=\frac{11}{-1}\\\\x=-11$

N76 [4]3 years ago

4 0

Answer:

x=-11

Step-by-step explanation:

(-x+10)/3=7

first get rid of the /3 so you have to x3 both sides

(-x+10)/3x3=7x3

(-x+10)=21

then get rid of the +10, so you have to -10 both sides

(-x+10-10)=21-10

-x=11

Now you just sorta move the - over

x=-11

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