Question

Me ajudem
7x-1=41
5x-10=80
5x+3=78
3x-7=65

Answer 1

Oii

a) 7x-1 = 41
7x = 41+1
7x = 42
x = 42/7
x = 6

b) 5x-10 = 80
5x = 80-10
5x = 70
x = 70/5
x = 14

c) 5x+3 = 78
5x = 78-3
5x = 75
x = 75/5
x = 15

d) 3x-7 = 65
3x = 65+7
3x = 72
x = 72/3
x = 24

Espero ter ajudado! :)