If you would like to know what is the sum of 667 and 23, you can calculate this using the following steps:
the sum of 667 and 23:
667 + 23 = 690
The correct result would be B. 690.
-2m+4m+5=3
(-2m+4m)+(5)=3
2m+5=3
2m+5-5=3-5
2m=-2
2m/2=-2/2
m=-1
the third option
because 1/3 is not equal to three
where as if we replace the x with one in all the other we would find that the equation is correct.
C
work:
75 is equal to 2x+15
75-15 = 60
60/2 = 30
x=30
