Question

3(w-4)+6=9
5(3z+3)-3z-5=0
1/5x+2=3-2/7x
3/5y-1=4+2/3y
4-3y-8=5y+6-4
1.5-0.7=0.4 3-5z ayuda please

Answer 1

3(w-4)+6=9
3w -12 + 6 = 9
3w - 6 = 9
3w =9+6
3w =15
w=15/3
w=5

5(3z+3)-3z-5=0
15z + 15 -3z -5 = 0
12z = 5-15
12z = -10
z = -10/12
z = - 5/6

1/5x+2=3-2/7x
1/5x + 2/7 x =3 -2
17/35 x =1
x = 1 /   17/35
x = 35/17

El mismo procedimiento para los restantes