Question

1)Simplifique e resolva as equações.2×(9x-4)-7+(6-5x)×3=18

Answer 1

2x(9x-4)-7+(6-5x)3=18
=> 18x-8-7+18-15x=18
=>3x+3=18
=>3x=15
x=15/3 
x=5

Answer 2

2 (9x - 4) - 7 + (6 - 5x ) x 3 = 18

18x - 8 - 7 + 18 - 15x = 18

18x - 15x = 18 - 18 + 8 + 7 

3x = 15

x = 15/3

x = 5