isaelcruz2121
isaelcruz2121 isaelcruz2121
  • 22-08-2021
  • Mathematics
contestada

Solve the equation.
30- (x + 5) = 7x-7
The solution is x =

Respuesta :

ghaithgh
ghaithgh ghaithgh
  • 22-08-2021

Answer:

[tex] - 30(x + 5) = 7x - 7 \\ - 30x - 150 = 7x - 7 \\ 7x + 30x = - 150 + 7 \\ 37x = - 143 \\ x = \frac{ - 143}{37} \\ x = - 3.864[/tex]

________o____o_____

30–(x+5)=7x-7

30 – x–5 =7x -7

7x+x = 30-5+7

8x = 32

x= 32/8

x=4

I hope I helped you^_^

Answer Link
sabrinarae00
sabrinarae00 sabrinarae00
  • 22-08-2021

X=4
30-x+5=7x-7
25-x=7x-7
-x+25=7x-7
-x=7x-32
(subtract 7x from both sides)
-8x=-32
(divide by -8) (remember negative times negative= positive)
X=4
Answer Link

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