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RichardKing2376
19.12.2019 •
Mathematics
Are the equations |x-3|=7 and |x|-3=7
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Ответ:
1. x=4 or x=10
2. x=-10 or x=10
No equivalent
Step-by-step explanation:
1. |x-3|=7 and x-3=7
Absoulte rules.
x-3=-7 and x-3=7
Add 3 both sides.
x-3+3=-7+3
Simplify.
-7+3=-4
x=-4
x-3=7
Add by 3 both sides.
x-3+3=7+3=10
x=10
X=-4, and X=10 is the correct answer.
2. |x|-3=7
Add by 3 both sides.
|x|-3+3=7+3
Simplify.
7+3=10
X=10
X=-10 and X=10 is the correct answer.
Ответ:
The measurement of angle S equals the measurement of angle R.
m∠S=m∠R
:)