A) 7x+5 = 2x-35
-2x -2x
5x + 5 = -35
-5 -5
5x = -40
x = -8
b) x/3 - 7 = -5
+7 +7
x/3 = 2 .. Multiple by 3 both sides
x = 6
c) 4x+5 = 4x+1
-4x -4x
1 = 5 , This is
NOT true ..
NO SOLUTIONS
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Answer
Step-by-step explanation:
10 km per hour.
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Answer:
The black-and white printer print can print 15 pages per minute.
Step-by-step explanation:
The given modeled equations are
3b + 5c = 70...(i)
6b + 9c = 135...(ii)
where b is the number of pages per minute of the black-and-white printer and c is the number of pages per minute of the color printer.
From equation (i), we have
Now, substitute the value of b in equation (ii), we have
By using equation (iii), we have
Hence, the black-and white printer print can print 15 pages per minute.
First, you need to multiply 3x5 and Sunday you 2B-3B. Now the problem is 18-15+-1. Since there is no exponents, multiplication, or division in this problem anymore, we are going to add. 15+-1=0. Now we have 18-0. 18-0=18. Therefore the answer is 18