Solving Two-Step Equations. Teacher: Jimmy Frost. What is a Two-Step Equation?. An equation written in the form Ax + B = C. Examples of Two-Step Equations. 3x – 5 = 16 y/4 + 3 = 12 5n + 4 = 6 n/2 – 6 = 4. Steps for Solving Two-Step Equations.
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Teacher: Jimmy Frost
An equation written in the form
Ax + B = C
4x – 5 = 15
+5 +5 (Add 5 to both sides)
4x = 20 (Simplify)
4 4 (Divide both sides by 4)
x = 5 (Simplify)
x/3 + 4 = 9
- 4 - 4 (Subt. 4 from both sides)
x/3 = 5 (Simplify)
(x/3) 3 = 5 3 (Mult. by 3 on both sides)
x = 15 (Simplify)