Question

a=3x -36 evaluate x when a =4.5

Answer 1

Answer:

$x=13 \frac{1}{2} \: or \: 13.5$

Step-by-step explanation:

$a = 3x - 36(a = 4.5)$

$4.5 = 3x - 36$

$3x = 4.5 + 36$

$3x = 40.5$

$x = \frac{40.5}{3}$

$x = \frac{40.5 \times 10}{3 \times 10}$

$x = \frac{405}{30}$

$x = 13 \frac{15}{30} = 13 \frac{1}{2}$

$x = 13 \frac{1}{2} \: or \: 13.5$

Hope it helps you