Question

Resolve as seguintes equações :


J) 10t+11=6t+5
L) 1-3x=x+9
M)36 - 1 - 7z

Answer 1

j) 10t+11 = 6t+5
10t-6t = 5-11
4t = -6
t = -6/4
t = -3/2

l) 1-3x = x+9
-3x-x = 9 - 1
-4x = 8
-x = 8/4
-x = 2
x = -2

m) 36-1-7z
36-1-7z = 0
-7z = -36+1
-z = -35/7
-z = -5
z = 5