Answer:
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Step-by-step explanation:
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Answer:
No solution
Step-by-step explanation:
12×+1=3(4×+1)-2
Opening brackets
12x + 1 = 12x + 3 - 2
Collecting like terms
12x - 12x = 3 - 2 - 1
Since x is cancelled out. No solution
Answer:
6
Step-by-step explanation:
expand
x-7= 1/4x-10/4
3/4x=18/4
multiply 4 on both sides to get rid of the denominator
3x=18
x=6
check work by substituting
6-7= 1/4(6-10)
-1= 1/4(-4)
-1=-1
they are equal, so it's correct
Answer:
40 black ink cartridges and 19 colored ink cartridges
Step-by-step explanation:
Let
represent the number of black printer ink cartridges sold. Let
represent the number of color printer ink cartridges sold.
Set up a system of equations:


Substitute:


⇒ 40 black ink cartridges, 19 colored ink cartridges (ans)