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Well, darling, a 2-step equation that equals 21 could be something like 2x + 5 = 21. First, you'd subtract 5 from both sides to get 2x = 16, then divide by 2 to find x = 8. Voila, you've got yourself a sassy solution!
example: 4x+5=13 First step: you must subtract 5 on each side. 4x=8 Second step: you must divide must side by four then it equals x=2
Equations that have letters are just called equations, but there are types 1, 2, 3, 4 and ratio type equations. Ratio type equations are the ones where it is a fraction on both sides of the equals sign. Equation (Type 2): x+1-5=12 Ratio Type Equation: 21/7=42-x/3
11k+7.7=15.4
If X equals 2, then y = 5