Question

Qual a resposta e a conta de A) 7x+3=2x+48
B) 19x-3=17x+17
C) 32x+1=31x-1

Answer 1

7x + 3 = 2x + 48
7x - 2x = 48 - 3
5x = 45
x = 9

19x - 3 = 17x + 17
19x - 17x = 17 + 3
2x = 20
x = 10

32x + 1 = 31x - 1
32x - 31x = - 1 - 1
x = - 1