Question

Resolva as equações abaixo, encontrando o valor de x,y,m ou t a) x - 17 = -9
b) 2x = -7
c) 3x + 2 = 2x - 11
d) 2x =16
e) 2x = -10
f ) 2x + 14 = 5x - 1
g) 4x - 5 =6x + 11
h) 5x + 4 - 2x = 26 - 3x
i) 5m - 7 - 2m - 2 = 0
j) y- 8 + 5y = -3 + 2y + 7
k) 4t + 9 = 3t + 5
l) -10 + 4 - 2x = -4x - 7
m) 10x - 8 - 2 = 7x - 4
n) 3 . ( x + 2 ) + 5 = x + 12
o) x + 4 . ( x - 1 ) = 9 - 2 . ( x + 3 )
p) 5 . ( 3x -2 )=2 . ( 6x + 3 )
q) 2. ( 3x - 1 ) + 2 . ( 3 - x ) = 0
r) 7 . ( x -1 ) = 2 . ( 3x +1 )
s) 2. ( 3 - y ) + 7 . ( 2 -y ) = 15 - 4y
t) 2 . ( x - 2 ) + 5 . ( 2 - x ) + 6 . ( x + 1 ) = 0
u) 3 . ( x - 2 ) - ( 1 - x ) = 13
v) x - ( x + 1 ) = 12 - ( 3x - 2 )

Answer 1

Boa noite

a) x - 17 = -9
X= -9 +17
X = +8

b) 2x = -7
X= -7 +2
X= -5

c) 3x + 2 = 2x - 11
3x - 2x = -11 -2
X= -13

d) 2x =16
X= 16 -2
X= 14

e) 2x = -10
X= -10 -2
X= -12

f ) 2x + 14 = 5x - 1
2x -5x = -1 -14
-3x = -15 .(-1)
X= 15/3
X=5

g) 4x - 5 =6x + 11
4x -6x = 11 +5
2x = 16
X= 16/2
X= 8

h) 5x + 4 - 2x = 26 - 3x
5x -2x +3x = 26 -4
6x = 22
X = 22/6
X= 3,6

i) 5m - 7 - 2m - 2 = 0
5m -2m = 0 +7 +2
3m = 9
m = 9/3
M = 3

Faz essas por enquanto