Question

A 9×-7=3×-17
B 6×+5=4×-19
C 4×+8=×+12
D 5×-10=2×+5
E ×-9=5×+7
F 3×+1=×+5

Answer 1

1)calcule o valor de x:


A )

9×-7=3×-17
9x-3x= -17 +7
6x= -10
x= -10/6=>÷2
x=>-5/3



B)
6×+5=4×-19
6x-4x= -19-5
2x= -24
x= -24/2
x= -12


C)
4×+8=×+12
4x-x= 12 -8
3x=4
x=4/3


D)
5×-10=2×+5
5x-2x=5+10
3x=15
x=15/3
x=5

E )

×-9=5×+7
x-5x=7+9
-4x=16
x= -16/4
x= -4



F ) 3×+1=×+5