Question

A set of equations is given below:

Equation S: y = x + 9
Equation T: y = 2x + 1

Which of the following steps can be used to find the solution to the set of equations?

x = 2x + 1
x + 9 = 2x
x + 1 = 2x + 9
x + 9 = 2x + 1

Answer 1

please help

Answer 2

i really need help

Answer 3

just replace y from 1st equation,
by the y from 2nd equation.

so replace y in
y =x+9
by '2x+1'
what do u get?

Answer 4

idk