The system of equations 3x+2y=12 and y=-3x+6 has (a, b) as its solution. Find the solution by substitution method and state the value of a.

i do not know the answer i am sorry

answer   download the app called socratic on your phoner:

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

0.6

39mph

step-by-step explanation: