Question

A) Find the value of 1 + 3x when x = 1
b) Find the value of 7 – 2x when x = -3

Answer 1

a) 4

b) 13

Explanation:

a) Find the value of 1 + 3x when x = 1

substitute 1 for x and then solve

1. 1+3(1)
2. 1+3=4

b) Find the value of 7 – 2x when x = -3

substitute -3 for x and then solve

1. 7-2(-3)
2. 7+6=13