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ButterflyEVE
03.12.2020 •
Mathematics
3x + 5 = 2x + 7 What should you do first to isolate the variable?
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Ответ:
you can subtract 2x from both sides
Then subtract 5 from both sides.
x = 2 is what the equation gives you
Step-by-step explanation:
You can do one of two things.
1. You can subtract 2x from both sides of the equation
or
2. You can subtract 5 from both sides of the equation.
Either one will give you the correct answer.
3x - 2x + 5 = 2x - 2x + 7 Combine the xs
1x + 5 = 7 Subtract 5 from both sides.
x + 5-5 = 7-5
x = 2
Ответ:
AEC = 115
Step-by-step explanation:
65 + AEC = 180
-65 -65
AEC = 115
hope this helps