Resolva as equaçoes:
A) x + 2 =10
B) 2y -110 = 30
C) m + 5 + m =25
D) a +10 + 2a = 40
E) 21 + z = 111
F) n + 30 = 57
G) p -9 =20
H) x + x + x =30
I) 3a - a =20
J) 45 + s = 125
Porf responde eu porf
Respostas
A) x + 2 =10
x = 10-2
x = 8
B) 2y -110 = 30
2y = 30+110
2y = 140
y = 140/2
y = 70
C) m + 5 + m =25
2m = 25-5
m = 20/2
m = 10
D) a +10 + 2a = 40
3a = 40-10
3a = 30
a = 30/3
a = 10
E) 21 + z = 111
z = 111-21
z = 90
F) n + 30 = 57
n = 57-30
n = 27
G) p -9 =20
p = 20+9
p = 29
H) x + x + x =30
3x = 30
x = 30/3
x = 10
I) 3a - a =20
2a = 20
a = 20/2
a = 10
J) 45 + s = 125
S = 125-45
S = 80
Resposta:
A) x + 2 = 10
x = 10 - 2
x = 8
B) 2y - 110 = 30
2y = 30 + 110
2y = 140
y = 140/2
y = 70
C) M + 5 + M = 25
M + M = 25 - 5
2m = 20
m = 20/2
m = 10
D) a + 10 + 2a = 40
A + 2a = 40 - 10
3a = 30
a = 30/3
a = 10
E) 21 + z = 111
z = 111 - 21
z = 90
F) n + 30 = 57
n = 57 - 30
n = 27
G) P - 9 = 20
p = 20 + 9
p= 29
H) x + x + x = 30
3x = 30
x = 30/3
x = 10
I) 3a - a = 20
2a = 20
a = 20/2
a= 10
J) 45 + s = 125
s = 125 - 45
s = 80