To solve this system of equations using substitution, what could be substituted in place of y in the first equation? 4x= 5 - 2y
y-2x = 7
O A. 7 - 21
O B. 4x-5
O C. 5-4c
————
2
O D. 2x + 7

my answer is$ 12

step-by-step explanation:

because 15 -2=12

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21

-7 + ? = 21

-7 + 28 = 21

hope it

1/2(2*4)=6 $$- agahajakanajak