Answer:
2/3
Step-by-step explanation:
-2x+3=-1+x+2
-2x-x+3=-1+2
-3x+3=1
-3x=1-3
-3x=-2
3x=2
x=2/3
Answer:
Step-by-step explanation:
#Using the method of substitution and replacement of unknown values.
Given that
Express eqtn (ii) in terms of x
Replacing for x in eqtn (i)
Substitute y value in eqtn(ii) to obtain x
Since there is no picture, I cannot give you a specific answer, but...
To decide if a line best fits a scatterplot you have to look at whether or not the line even remotely makes sense, if the dots are on one side and the line is no where near any of the dots, it is probably not a realistic placement.
If it looks realistic, take a look at if it best fits the dots, is there a line that would touch more or be nearer to more of the dots?
Multiply the first equation by 7 and the second equation by 2, and then add.
Step-by-step explanation:
2f - 5g=-9
-7f + 3g=4
To eliminate any variable , we need to make the coefficients same with different sign and add it
the coefficient of 'f' in first equation is 2
the coefficient of 'f' in second equation is -7
We already have different sign so we make the coefficients same
To make the coefficient same , we multiply the first equation by 7 and second equation by 2
So equation becomes
14f - 35g = -63
-14f + 6g = 8
Now when we add both equations, 'f' gets cancelled
-29g = -55
Step-by-step explanation:
3(6+b)+2b+1
18+3b+2b+1
5b+19
