How do you solve the following linear system: # 4x + 3y=31 , 2x+3y=-7 #?
I use elimination method coz it is easy for this kind of question. U can also use subtitution method, u will get the same answer, dont worry.
So, i use minus to eliminate 3y to find x
Be careful when u solve 31 - (-7) = 38
Then, subtitute the answer x=19 into the equation.
U can choose either one of the equation, doesnt matter