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Two-step bracket equations Mastery:
54%
Shared WhiteboardLinear Equations with Brackets
Live Equation & Verified Steps
No Answer Spoilers3(x − 2) + 5 = 20
Spark’s Board Card: Goal: Isolate (x − 2) first, or distribute 3 across both terms.
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SparkSocratic Coach
Hint rung: 0/5
Spark · AI TutorOpening Socratic Prompt
Hi! I’m Spark, your AI study partner. We’re looking at 3(x − 2) + 5 = 20. Before we touch the x inside the bracket, what’s your first move to simplify the left side?
You (Student)
I expanded the bracket to get 3x − 2 + 5 = 20.
Spark · AI TutorDiagnostic Nudge
Good instinct to expand! Look closely at the −2 inside (x − 2) though: the 3 outside multiplies every term inside the bracket. What do you get when you multiply 3 by −2?
Click a response to test Spark, or type your own working below: