Question

solving a system of linear equations using substitution
solve this system of equations using substitution:
( y = 2x - 4 )
( x + 2y = 10 )
step 1: substitute for ( y ) in the second equation. which is the resulting equation?
options:
( 2x - 4 = 10 )
( x + 2x - 4 = 10 )
( x + 2(2x - 4) = 10 )

Explanation:

Step1: Substitute $y=2x-4$ into second equation

$x + 2(2x - 4) = 10$

Answer:

$x + 2(2x - 4) = 10$