Solve by substitution: -5x + y = -2 -3x + 6y = -12 explain

First we pick the equation. Let's say we pick first one. From it we express y.

Then we use this y and plug it in instead of y in the second equation.

Now just solve for x.

We plug this x in the first equation.

And solve for y.

So the solution to the equation is geometrically a point P which lies on the intersection of the two lines.

Hope this helps.

r3t40

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3