Question

resolva as equaçoes com calculos
e) 7(x-4)=2x-3
f) 3(x-2)=4(3-x)
g) 3(3x-1)=2(3x+2)

Answer 1

Boa noite

e) 7(x-4)= 2x-3
7x-28= 2x-3
7x-2x= -3+28
5x= 25
x= 25/5
x= 5

f) 3(x-2)= 4(3-x)
3x-6= 12-4x
3x+4x= 12+6
7x= 18
x= 18/7

g) 3(3x-1)= 2(3x+2)
9x-3= 6x+4
9x-6x= 4+3
3x= 7
x= 7/3