Question

1) Resolvo as equações:
A)3(2×+6)+2(6×-1)=×+4
B)6(3×-9)+4(×-1)=3×+100
C)9(2×-1)+×=3+×
D)4(2×-9)+2(×+3)-×=2(×+20)
E)8(3×+4)-2(×-1)+3×=×+200
F)3×+3+4=×-1
-------------------
     2       3
G)4×+3+×=×+3
--------------------
     5    3   2
H)9×-7+4=×
----------------
     3      2
I)4×-10+×=×+3
-------------------
     2   3    5
J)9×-8+3=×-7
-------------------
    2        3

Answer 1

A)3(2×+6)+2(6×-1)=×+4

6x+18+12-2=x+4

5x=4-28

x=-24/5
--------------------

F)3×+3+4=×-1
 
2x=-8

x=-4

---------------------------
G)4×+3+×=×+3

4x=0

x=0
-------------------
H)9×-7+4=×

8x=3

x=3/8

-----------------------
J)9×-8+3=×-7

8x=-7+5

x=-2/8

x=-1/4

tenta resolver o resto