Question

x = 2
1. Agora resolva:
a) 3x - 1 = 14
b) 10 x + 5 = 35
c) 4x - 8 = 12
d) 2x + 7 = 15
e) 11x - 3 = 19
f) 7 + 2x = 11
g) 9 + 3x = 36
h) 5x - 9 = 1
j) 9 + 2x = 15​

Answer 1

Resposta:

a) x= 5, b) x= 3, c) x= 10, d) x= 4, e) x= 2, f) x= 2, g) x= 9, H) x= 2, j) x= 3

Explicação passo-a-passo:

a) 3x-1= 14

3x= 14+1

3x=15

x= 15/3

x= 5

b) 10x+5= 35 ; 10x= 35-5; 10x= 30; x= 30/10; x= 3.

c) 4x-8= 12; 4x= 12+8; 4x= 20; x= 20/4; x= 5.

d) 2x+7= 15; 2x= 15-7; 2x= 8, X= 8/2= 4