Question

1/3X=2.
X+4=9
X+5=5
7X=10
X+2=_4

Answer 1

Ответ:

$\frac{1}{3} x = 2 \\ x = 2 \times 3 \\ x = 6$

$x + 4 = 9 \\ x = 9 - 4 \\ x = 5$

$x + 5 = 5 \\ x = 5 - 5 \\ x = 0$

$7x = 10 \\ x = \frac{10}{7}$

$x + 2 = 4 \\ x = 4 - 2 \\ x = 2$

$x + 2 = - 4 \\ x = - 4 - 2 \\ x = - 6$

Answer 2

Пошаговое объяснение:

$\frac{1}{3x} = 2 \\ 3x = \frac{1}{2} \\ x = \frac{1}{2} \div 3 \\ x = \frac{1}{2} \times \frac{1}{3} = \frac{1}{6}$

x+4=9

x=9-4=5

x+5=5

x=5-5=0

7x=10

x=10/7

x+2=4

x=4-2=2