foreignforeign2 foreignforeign2

13-10-2021
Mathematics

contestada

x+y=21
y=6x

can anyone help with this

Respuesta :

GeothermalBroom GeothermalBroom

13-10-2021

Answer:

x = 3

Step-by-step explanation:

x + y = 21

y = 6x

Since y = 6x, this is added to the equation above

x + 6x = 21

6x + x = 7x

7x = 21

/7 /7

x = 3

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