How do you plug in the following equations into a graphing calculator to get the answer?

3x + 6y = 18
2x + 5y = 20

Question

How do you plug in the following equations into a graphing calculator to get the answer?

3x + 6y = 18
2x + 5y = 20

amistre64 · Answer

y1 = Eq1
y2 = Eq2

hit graph and see where they intersect

amistre64 · Answer

cant really say much more since every calc is different

anonymous · Answer

yeah but where do I put the =18? u cant do that in my graphing calculator

amistre64 · Answer

ooo ... put it to the other side :)

anonymous · Answer

how? xD

amistre64 · Answer

y1 = 3x + 6y = 18
y1 = 3x + 6y - 18

y2 = 2x + 5y = 20
y2 = 2x + 5y - 20

amistre64 · Answer

its just on the wrong side of the equals sign; so bring it over like you normally would :)

anonymous · Answer

oooooh thank u :)

anonymous · Answer

wait wait u can't put y in the equation since it already has one

amistre64 · Answer

..... fine, solve each equation for y then :)

amistre64 · Answer

3x + 6y1 = 18

y1 = -3x/6 +18/6
     = -x/2 +3

2x + 5y2 = 20

y2 = -2x/5 + 20/5
     = -2x/5 + 4

anonymous · Answer

oh thnx aloooooooooooot ^_^