a) 10y-6y= 400-20
b) 7x-5x+3x= 0
c) 2y- y- 10y= 0
d) 2x+x-9+x= 9
e) 10x+8+2-5x= 20
f) 3w-w= 100
g) 6w+w+35-50= 2w
h) 2x+x+x+4x= 60
i) x+x+3x+25-10= 75-10
j) 6w-w+35= -10+15
k) +3z+z+12= -2z-48
L) 4x-x+13-23= -40
m) 5x-2x-x+20-35= 150
n) 3x-+10-6-x= 14
o) 2x+2x+16= 36
p) 5x-13+12+5x= 60
Q) x+x+x+30= 90-30
R) 2w-w-23= 3
s) 3x-x+12+3= 75
t) 6x-2x-40= 4
u) 2x+x+2x= 50
Me ajudem a responder essas contas OBG.
Soluções para a tarefa
Resposta:
A) 10y-6y= 400-20
4y = 380
y = 380/4
y = 95
b) 7x-5x+3x= 0
2x + 3x = 0
5x = 0
x = 0/5
x = 0
c) 2y- y- 10y= 0
y - 10y = 0
-9y = 0
y = 0/-9
y = 0
d) 2x+x-9+x= 9
4x = 9 + 9
4x = 18
x = 18/4 simplificando por 2
x = 9/2
e) 10x+8+2-5x= 20
5x + 10 = 20
5x = 20 - 10
5x = 10
x = 10/5
x = 2
f) 3w-w= 100
2w = 100
w = 100/2
w = 50
g) 6w+w+35-50= 2w
6w + w - 2w = 50 -35
5w = 15
w = 15/5
w = 3
h) 2x+x+x+4x= 60
8x = 60
x = 60/8 simplificando por 4
x = 15/2
i) x+x+3x+25-10= 75-10
5x = 75 + 10 - 25 + 10
5x = 70
x = 70/5
x = 14
j) 6w-w+35= -10+15
5w = -10 + 15 - 35
5w = -35
w = -35/5
w = -7
k) +3z+z+12= -2z-48
3z + +z + 2z = -48 -12
6z = -60
z = -60/6
z = -10
L) 4x-x+13-23= -40
3x = -40 - 13 + 23
3x = -30
x = -30/3
x = -10
m) 5x-2x-x+20-35= 150
3x = 150 - 20 + 35
3x = 165
x = 165/3
x = 55
n) 3x+10-6-x= 14
2x = 14 -10 + 6
2x = 10
x = 10/2
x = 5
o) 2x+2x+16= 36
4x = 36 - 36
4x = 0
x = 0/36
x = 0
p) 5x-13+12+5x= 60
10x = 60 + 13 -12
10x = 61
x = 61/10
Q) x+x+x+30= 90-30
3x = 90 - 30 - 30
3x = 30
x = 30/3
x = 10
R) 2w-w-23= 3
w = 3 + 23
w = 26
s) 3x-x+12+3= 75
2x = 75 -12 - 3
2x = 60
x = 60/2
x = 30
t) 6x-2x-40= 4
4x = 4 + 40
4x = 44
x = 44/4
x = 11
u) 2x+x+2x= 50
5x = 50
x = 50/5
x = 10
Explicação passo-a-passo: