Question

a) 2 (x+12) - 3(2x-1) = 5x+9
b) 4x+1-3(x+2) = 2(x-4)
c) 2(x+3) - 2(5-x) = 7x + 2
d) 6x + 11 - 5(x-2) = 4x-3

Answer 1

a)2(x+12)-3(2x-1)=5x+9
2x+24-6x+3=5x+9
2x-6x-5x=9-24-3
-9x=-18 |:(-9)
x=2
b)4x+1-3(x+2)=2(x-4)
4x+1-3x-6=2x-8
4x-3x-2x=-8-1+6
-x=-3 |×(-1)
x=3
c)2(x+3)-2(5-x)=7x+2
2x+6-10+2x=7x+2
2x+2x-7x=2-6+10
-3x=6 |:(-3)
x=-2
d)6x+11-5(x-2)=4x-3
6x+11-5x+10=4x-3
6x-5x-4x=-3-11-10
-3x=-24 |:(-3)
x=8