Question

preciso disso pra hj, ajuda plz

Answer 1

a) 2x+x = 5m + m
3x= 6m
x=6m/3
x=2m

b) 3ax=7a-5a
3ax=2a
x=2a/3a
x=2/3

c) x(a+b) = (a+b)(a-b)
x= (a+b)(a-b)
        (a+b)
x= a-b

d) 2x + 2m = x-m
2x-x= -m-2m
x = -3m

e) ax-a= c-cx
ax+cx= c+a
x(a+c) = c+a
x = c+a
      a+c
x=1

f) 4x -2a=2c/3
4x = 2c/3 + 2a
12x = 2c + 6a
x = 2c + 6a
      12    12
x = c + a
      6    2