Question

a) 10x+20+3x-7=10x+80-x-9
b) 4x+20+6x+9=2x-10+7
c) 12x-20-10x+2+1=2x+6-4x-16
d) 10x+35-18x+18=6x+2-x+11
e) 8x-16+3x+7=10x+30-x-5
f) 4x-5-6x+4=3x-3+9
VA ROG,DAU COROANA!!!!!!!! URGENT

Answer 1

a) 10x+20+3x-7=10x+80-x-9
13x+13=9x+71
13x-9x=71-13
4x=58
x=58/4
x=29/2


b) 4x+20+6x+9=2x-10+7
10x+29=2x-3
10x-2x=-3-29
8x=-32
x=-32/8
x=-4


c) 12x-20-10x+2+1=2x+6-4x-16
2x-17=-2x-10
2x+2x=-10+17
4x=7
x=7/4


d) 10x+35-18x+18=6x+2-x+11
-8x+53=5x+13
-8x-5x=13-53
-13x=-40
x=40/13


e) 8x-16+3x+7=10x+30-x-5
11x-9=9x+25
11x-9x=25+9
2x=34
x=34/2
x=17


f) 4x-5-6x+4=3x-3+9
-2x-1=3x+6
-2x-3x=6+1
-5x=7
x=-7/5