The difference between twice a number, x, and a smaller number, y, is 3. The sum of twice the number and the smaller number is-3
. Which equations represent this situation?
2 answers:
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Start with expression
1. Separate terms - with x leave in left side, without x write in right side:
2. Divide the last expression by a ():
Answer: this statement is true when .
Answer:
x = ± 6
Step-by-step explanation:
Given
x² - 72 = 0 ( add 72 to both sides )
x² = 72 ( take the square root of both sides )
x = ± = ±
= ± 6