Solve any equation without solving it
Graph both sides, and the answer is wherever they cross.
2:23 · Nonlinear Equations in 1 Variable and Systems of Equations in 2 Variables
Worked in this video
2x + 1 = x + 4
Solve for x.
Type the left side as y = 2x + 1 and the right side as y = x + 4. Two lines. Click where they cross and Desmos labels the point (3, 7) — the x is your answer.
Answer: x = 3