tli8322 tli8322

21-04-2021
Mathematics

contestada

how do you solve 9x - 7 = -7 and the question on the picture

how do you solve 9x 7 7 and the question on the picture class=

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thebecks thebecks

21-04-2021

Answer:

x = 0

r = 20

Step-by-step explanation:

9x - 7 = -7

add 7 to each side of the equation:

9x = 0

x = 0

-4 = (r/20) - 5

add 5 to each side of the equation:

1 = r/20

multiply both sides by 20:

r = 20

Answer Link

natthalieblanco natthalieblanco

21-04-2021

9x - 7 = -7
+7. +7
9x=0
9x/9=0/9
X=0
5)r=20

Ver imagen natthalieblanco

Answer Link

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