)A system of equations is given below:y = 3x + 42x + 3y = 10Which of the following steps could be used to solve by substitution?3x + 4 = 2x + 3y2x + 3(3x + 4) = 102(3x + 4) + 3y = 103(y = 3x + 4)

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.

first 15 divide by 2 = 7.5

100 divided by 7.5 is 13.

15 / 2 = 7.5

100 / 7.5 = 13.