Question

determine x:
a) 2x+3=x+4
b)5x+7=4x+10
c)4x-10=2x+2
d)4x-7=8x-2
e)9x+9+3x=15
f)16x-1=12x+3
g)3x-2=4x+9
h)17x-7x=x+18
i)5x-3+x=2x+9
j)-3x+10=2x+8+1

Answer 1

a) x=1
b) x=3
c) x=6
d) x=-5/4
e) x=1/2
f) x=1
g) x= -11
h) x= 2
i) x=3
j) x= 1

Answer 2

a) 2x+3=x+4 -> 2x-x=4-3 -> x=1.......... b) 5x+7=4x+10 -> 5x-4x=10-7 -> x=3
c) 4x-10=2x+10 -> 4x-2x=2+10 -> 2x=12 -> x=12/2 -> x=6......
d) 4x-7=8x-2 -> 4x-8x=-2+7 -> - 4x=5 -> x= 5/-4….........................
e) 9x+9+3x=15 -> 9x+3x= 15-9 -> 12x=6 -> x= 6/12 simplificando x= 1/2...............
f) 16x-1=12x+3 -> 16x-12x=3+1 -> 4x=4 -> x= 4/4 -> x=1.........
g) 3x-2=4x+9 -> 3x-4x=9+2 -> - x=11 -> x = - 11........
h)5x-3+x=2x+9 -> 5x+3x-2x=9+3 -> 6x=12 -> x=12/6 -> x=2.....
j) - 3x+10=2x+8+1 -> - 3x-2x= 8+1-10 -> - 5x=-1 -> x = - 1/-5