Answer:
The answer is C, the coefficient.
Y = 3x + 4 is the equation
Answer:
x =-1
Step-by-step explanation:

replace y by 2x +4 in the first equation
2(2x + 4) = 6x + 10
4x + 8 = 6x + 10
-2x +8 = 10
-2x = 2
x = -1
Answer:
126 square meters
Step-by-step explanation:
7 x 6 x 3. You can regroup any pair of factors to make it easier on you.
I did (7 x 6) x 3 = 42 x 3 = 126