Question

find z, if 15/4 -7z = 9​

Answer 1

Answer:

$\frac{15}{4} - 7z = 9 \\ \\ = > \frac{15 + 28z}{4} = 9 \\ \\ = > 15 + 28z = 9 \times 4 = 36 \\ \\ = > 28z = 36 - 15 = 21 \\ \\ = > z = \frac{21}{28} = \frac{3}{4}$

Answer 2

Step-by-step explanation:

15/4 -7z = 9

15/4 -9 = 7z

15-36/4 = 7z

21 /4 =7z

21 / 4×7 =z

21 /28 =z

3/4 =z