Question

resolva as equação
a)9× + ×-31=19
b)×+×+3=3×-9
c) 2×+12=_4×_14
d) 15+5×=30+10×​

Answer 1

a)9x+x-31 = 19

10x = 19+31

10x = 50

x = 50/10

x = 5

b)x+x+3 = 3x-9

2x-3x = -9-3

-x = -12

x = 12

c) 2x+12 = -4x-14

2x+4x = -14-12

6x = -26

x = -26/6 simplificando por 2

x = -13/2

d) 15+5x = 30+10x

5x-10x = 30-15

-5x = 15

x = -15/5

x = -3

❤️ Espero ter ajudado ❤️

04/08