What is the solution?
3x+3y=10
-9x-9y=-30 I am so confused! I keep getting different answers! I need help! :(

Question

What is the solution?
3x+3y=10
-9x-9y=-30 I am so confused! I keep getting different answers! I need help! :(

anonymous · Answer

ok first you divide by 3 to get y alone.then subtract 3x from both sides and the solution would be y=-3x+3.3

anonymous · Answer

3x+3y=10
-9x-9y=-30
lets look at the 2nd equation 
-9x-9y=-30
you can divide the entire thing by -3 so after that you get
3x+3y=10

anonymous · Answer

you basically have two of the same equation

anonymous · Answer

so this problem as infinately many solutions or x=all real numbers and y=all real numbers

otonogold · Answer

so it will basically be 
3x+3y=10
3x+3y=10 ?

thejax · Answer

This shows no point of intersection, both the eqns coincide

anonymous · Answer

its a simultaneous equation

austinl · Answer

Multiply the top equation by three.

Which should give,

9x+9y=30 
-9x-9y=-30

Added together we have,

0=0

Therefore, infinitely many solutions, $\mathbb{R}$.

otonogold · Answer

that makes a lot more sense! Thank you so much for helping me understand !