Question

решите уравнения: 1) 3x=-9 2)-4x=-16 3)-2.5=5 4)0.6x=12 СРОЧНО!!!

Answer 1

#1.

$3x = -9\\x = \frac{-9}{3} \\x = -3$

#2.

$-4x = -16\\x = \frac{-16}{-4} \\x = 4$

#3.

$-2,5x = 5\\x = \frac{5}{-2,5} \\x = \frac{50}{-25} \\x = -2$

#4.

$0,6x = 12\\x = \frac{12}{0,6} \\x = \frac{120}{6} \\x = 20$