desmondsiaka desmondsiaka
  • 18-09-2022
  • Mathematics
contestada

If x = y – 9, and y – 4 = 10, x = ?

Respuesta :

chibabykalu16
chibabykalu16 chibabykalu16
  • 18-09-2022

Answer:

X = 5

[tex] \sf \large \: x=5 and y=14[/tex]

Step-by-step explanation:

Let's solve your system by substitution.

x=y−9;y−4=10

Rewrite equations:

y−4=10;x=y−9

Step: Solvey−4=10for y:

y−4=10

y−4+4=10+4(Add 4 to both sides)

y=14

Step: Substitute14foryinx=y−9:

x=y−9

x=14−9

x=5(Simplify both sides of the equation)

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