Use the substitution method to solve the system of equations
4(x+4)=8(y+2)
18y-22=3x+2
A. (4,2)
B.(8,10)
C.(6, 1/2)
D.(4,8)
E.(12,6)

Question

Use the substitution method to solve the system of equations  
4(x+4)=8(y+2)
18y-22=3x+2 
A. (4,2)
B.(8,10)
C.(6, 1/2) 
D.(4,8)
E.(12,6)

campbell_st · Answer

well take the 2nd equation and make x the subject


subtract 2 from both sides of the equation 

18y - 24 = 3x

now divide both sides by 3

6y - 8 = x

substitute this into the 1st equation and solve for y 

when you get y, substitute it into either equation to find x

anonymous · Answer

I wanted a quick answer but thanks lol

campbell_st · Answer

well the quick solution is to substitute each pair of points... 

start with A...

anonymous · Answer

Alright thank you very much!