Question

1,3x-0,5x=11,5
4x-16=8
X:6=17
хелп

Answer 1

1)

1,3х - 0,5х = 11,5

0,8х = 11,5

$\frac{0,8x}{0,8}=\frac{11,5}{0,8}$

$x=\frac{11,5}{0,8}$

х = 14,375

2)

4х - 16 = 8

4х - 16 + 16 = 8 + 16

4х = 8 + 16

4х = 24

$\frac{4x}{4}=\frac{24}{4}$

$x=\frac{24}{4}$

х = 6

3)

Х : 6 = 17

$\frac{x}{6}=17$

$6*\frac{x}{6}=6*17$

х = 6 · 17

х = 102