Let's solve these one teeny tiny step at a time. Pick a problem, then press Next. Press 🔊 and I'll read each step to you!
Two roads that meet at one spot. One answer.
Called: consistent and independent.
Like train tracks, side by side forever. No answer.
Called: inconsistent.
The same line sitting on top of itself. Answers everywhere.
Called: consistent and dependent.
−(5 − 3x) turns into −5 + 3x.
≥ turns into ≤, and > turns into <.
1/3 means go up 1, then right 3. Like climbing stairs.
It stands straight up and down, like x = −4 or x = 5.
For rules like x + 3y = −6: make x be 0 to find one dot, then make y be 0 to find another dot. Join them!
It lies flat, side to side, like y = −1 or y = −3.
≤ or ≥ gets a filled dot (the number counts). < or > gets an empty dot (it doesn't).
Helper version 4