Question

Resolva as equações letra A)7x-6=3-5x letra B)4x-15=12-5x letra c)4 (x-5)=3 (x-2)​

Answer 1

a)

7x-6=3-5x

7x+5x=+6+3

12x=9

x=9/12

b)

4x-15=12-5x

4x+5x=+15+12

9x=27

x=27/9=3

c)

4(x-5)=3(x-2)

4x-20=3x-6

4x-3x=+20-6

x=14