Question

the sum of 3 times a number and 7 is 8 use the variable of w for the unknown number

Answer 1

Answer:

⅓

Step-by-step explanation:

I solved it in the picture above

Answer 2

Answer:

w = $\frac{1}{3}$

Step-by-step explanation:

The equation representing the situation is

3w + 7 = 8 ( subtract 7 from both sides )

w = 1 ( divide both sides by 3 )

w = $\frac{1}{3}$