Question

socoroooo
resolva a equação abaixo????????

a) -3x=30

b)x-3=7

c) 2x+12= -14

d)6x+3=3x-12

e)-3x-10= -2x-15​

Answer 1

a) -3x = 30

x = 30 / -3

x = -10

b) x - 3 = 7

x = 7 + 3

x = 10

c) 2x + 12 = -14

2x = -14 - 12

2x = -26

x = -26 / 2

x = -13

d) 6x + 3 = 3x - 12

6x - 3x = -12 - 3

3x = -15

x = -15 / 3

x = -5

e) -3x - 10 = -2x - 15

-3x + 2x = -15 + 10

-x = -5

x = -5 / -1

x = 5