Question

(0.4z-3)=-7/5.find the value of(1.5z+9)

Answer 1

$(0.4z - 3) = \frac{ - 7}{5} \\ 0 . 4z = \frac{ - 7}{5} + 3 \\ \frac{4z}{10} = \frac{ - 7 + 15}{5} \\ \frac{4z}{10} = \frac{ 8}{5} \\ z = \frac{8 \times 10}{5 \times 4} \\ z = 4$
$(1 .5z + 9) = (1 .5 \times 4 + 9) \\ = 6 + 9 = 15$
Hope this will help you

Answer 2

Answer:

Step-by-step explanation: