You could solve it with these two steps:
#1). Subtract 6 from each side of the equation.
and then
#2). Divide each side by 7.
If you'll do that, the solution will be right there on the paper in front of you.
It'll begin with "x =", and right after that will be the value of 'x'.
Consecutive numbers differ by one. So, if
is the first, the three numbers are

The sum of the first and third integer is

Step-by-step explanation:
the estimated increase in height of baby each year would be 3 inches.
1km is 1000 m
1000m+125m-375m=750m
The square root of 78 is Irrational