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Solve linear equations for a targetTactic

Tactic

Solve linear equations for a target

Read the target first, then stop when it stands alone

9 min 6 stepsGraded practice at the end

The SAT asks for 3x, then waits for you to hand over plain x. Going one step too far is how my pencil scheme fell apart.

Meet it
Spot it
Run it
Dodge the traps
Play with it
Prove it

The first step is free. A free account opens the rest.

Calls on

Isolate a variableTechniqueUndo each operation, in reverse, on both sides
Distribute and expandTechniqueMultiply every term by every term, signs included
Combine like termsTechniqueAdd coefficients only when the variable parts match
Clear fractions and decimalsTechniqueMultiply every term once and the fractions are gone
Inequality manipulationTechniqueSolve like an equation; flip for negatives

Used by

Polynomial zeros, factors, and graphsTacticTurn zeros into factors and factors into graphs
Angle chasingTacticOne fact per step, from the given to the target
Trig relationships beyond one triangleTacticSwap at the complement, strip the full turns

Other routes

Backsolve from the choicesTacticTest the middle choice, then step up or down
Graph it (Desmos)TacticTurn the question into a point you can click