andrewweltz421
31.08.2020 •
Mathematics
Simplify -2x+7=15, i need help understanding why it is -4
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Ответ:
-4
Step-by-step explanation:
Step 1: Subtract 7 from both sides.
−2x+7−7=15−7
−2x=8
Step 2: Divide both sides by -2.
−2x
−2
=
8
−2
x=−4
Ответ:
the answer is 521
Step-by-step explanation: i don't know how i got it i am a human calculator :)