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Solve for x. y=7x−7z−9
answered
Mar 24, 2018
Mathematics
middle-school
4
votes
54.6k
views
Solve the system of equations. 3x – 7y = 5 9y = 5x + 5 A. (–3, 2) B. (8, 5) C. (–10, –5) D. (0, 0)
answered
Feb 15, 2018
Mathematics
high-school
2
votes
126k
views
Factor the GCF: 12x3y + 6x2y2 − 9xy3. 3x2y(4x2 + 2xy − 3) 3xy(4x + 2xy − 3y2) 3xy(4x2 + 2xy − 3y2) 3x2y(4x3y − 2x2y2 − 3xy3)
answered
Jul 25, 2017
Mathematics
high-school
1
vote
227k
views
Is air an element, compound, homogeneous mixture, or a heterogeneous mixture?
answered
Jul 20, 2017
Chemistry
high-school
1
vote
151k
views
Multiplying decimals with models
answered
Jun 17, 2017
Mathematics
middle-school
3
votes
81.6k
views
What is the ratio as a fraction in lowest term for 45 mph to 20 mph ?
answered
May 3, 2017
Mathematics
middle-school
4
votes
217k
views
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