aliw03
16.12.2020 •
Mathematics
Solve for 5x - 7 + 2x = 21
Help this will be very much appreciated .
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Ответ:
x = 4
Step-by-step explanation:
Pull out like factors: 7x - 28 = 7 • (x - 4)
Solve: x-4 = 0
Add 4 to both sides of the equation: x = 4
Please mark as brainliest.
Thanks!
Ответ:
3.50/5= .70
5.20/8= .65
2.25/3= .75
The lowest unit price is Brand B. 65 cents is cheaper than 70 or 75.
I hope this helps!
~kaikers