Question

a)6x-2x+4=40
b)X⁵-1=31
c)4x+5¹=1x+26
d)7x+√4=3x+2.9
e)2.(x+1)-3²=5
f)x:2-√9=2²

Answer 1

a)6x-2x+4=40 -> 4x+4=40 -> 4x=40-4 -> 4x=36 -> x=36/4 -> x=9
b)X⁵-1=31  -> X⁵=31+1 -> X⁵ =32 -> x=⁵v/32 -> x=2
c)4x+5¹=1x+26 -> 4x+5=x+26 -> 4x-x=26-5 -> 3x=21 -> x=21/3 -> x=7
d)7x+√4=3x+2.9 -> 7x+2=3x+18 -> 7x-3x=18-2 -> 4x=16 -> x=16/4 -> x=4
e)2.(x+1)-3²=5 -> 2x+2-9=5 -> 2x-7=5 -> 2x=5+7 -> 2x=12 -> x=12/6 -> x=2
f)x:2-√9=2² -> x/2-3=4 -> x/2=4+3 -> x/2=7 -> x=2.7 -> x=14