Question

dertemine o valor do x. a) 2,5x + 1,5x = 16 b) 3x - 2,5x = 18 c) 2x + 1,25x = 26 d) x + 0,2x = 30

Answer 1

a) 4x=16
logo x=4
b)0,5X=18
logo x=36
c)3,25x=26
logo=8
c)1,2x=30
logo 25