Question

Resolva as seguintes equacao
L) x/3=7
M)x/4 =-3
N) 6x =2x+16
O)2x - 5=x+1
P)2x+3=x+4
Q)5x+7=4x+10
R)4x - 10=2x+2
S)4x_7=8x-2
T)2x+1=4x-7
U)9x+9+3x=15
V)16x-1=12x+3
W)3x-2=4x +9
X) 5x-3+x=2x +9
Y) 17x-7x=x+18
Z) x+x - 4=17-2x +1

Answer 1

L) x/3 = 7
x = 7x3
x = 21

m) x/4 = -3
x = -3x4
x = -12

n) 6x = 2x+16
6x-2x = 16
4x = 16
x = 4

o) 2x-5 = x+1
2x-x = 1+5
x = 6

p) 2x+3 = x+4
2x-x = 4-3
x = 1

q) 5x+7 = 4x+10
5x-4x = 10-7
x = 3

r) 4x-10 = 2x+2
4x-2x = 2+10
2x = 12
x = 6

s) 4x-7 = 8x-2
4x-8x = -2+7
-4x = 5 .(-1)
4x = -5
x = -5/4

t) 2x+1 = 4x-7
2x-4x = -7-1
-2x = -8 .(-1)
2x = 8
x = 4

u) 9x+9+3x = 15
9x+3x = 15-9
12x = 6
x = 6/12 : 2
x = 1/2

v) 16x-1 = 12x+3
16x-12x = 3+1
4x = 4
x = 1

w) 3x-2 = 4x+9
3x-4x = 9+2
-x = 11 .(-1)
x = -11

x) 5x-3+x = 2x+9
5x+x-2x = 9+3
4x = 12
x = 3

y) 17x-7x = x+18
10x-x = 18
9x = 18
x = 2

z) x+x-4 = 17-2x+1
2x+2x = 18+4
4x = 22
x = 22/4 : 2 = 11/2