Me ajudem por favor
a) 4x-1 = 3(x-1)
b) 3(x-2) = 2x-4
c) 2(x-1) = 3x+4
d) 3(x-1) -7 = 15
e) 7(x-4) = 2x-3
f) 3(x-2) = 4(3-x)
g) 3(3x-1) = 2(3x+2)
h) 7(x-2) = 5(x+3)
i) 3 (2x-1) = -2(x+3)
j) 5x-3(+2) = 15
a) 4x-1 = 3(x-1)
b) 3(x-2) = 2x-4
c) 2(x-1) = 3x+4
d) 3(x-1) -7 = 15
e) 7(x-4) = 2x-3
f) 3(x-2) = 4(3-x)
g) 3(3x-1) = 2(3x+2)
h) 7(x-2) = 5(x+3)
i) 3 (2x-1) = -2(x+3)
j) 5x-3(+2) = 15
Lista de comentários
a) 4x-1 = 3(x-1)
4x-1=3x-3
4x-3x=-3+1
x = -2
b) 3(x-2) = 2x-4
3x-6=2x-4
3x-2x=-4+6
x= 2
c) 2(x-1) = 3x+4
2x-2=3x+4
-2-4=3x-2x
-6=x
ou: x=-6
d) 3(x-1) -7 = 15
3x-3-7=15
3x-10=15
3x=15+10
3x=25
x=25/3
e) 7(x-4) = 2x-3
7x-28=2x-3
7x-2x=-3+28
5x=25
x=25/5
x=5
f) 3(x-2) = 4(3-x)
3x-6=12-4x
3x+4x=12+6
7x=18
x=18/7
g) 3(3x-1) = 2(3x+2)
9x-3=6x+4
9x-6x= 4+3
3x= 7
x=7/3
h) 7(x-2) = 5(x+3)
7x-14=5x+15
7x-5x=15+14
2x= 29
x=29/2
i) 3 (2x-1) = -2(x+3)
6x-3=-2x-6
6x+2x = -6+3
8x=-3
x=-3/8
j) 5x-3(+2) = 15
5x-6=15
5x=15+6
5x=21
x=21/5