Question

solve the following equation: i) 5x+2=3x+12 ii) 6y-9=2y+15 iii) 2x-3=9-x iv)2a-5=8a+1 v) b+3=33-b vii) 1.9x+3.6=2.5x+3

Answer 1

1) x=5.
2)y=6.
3)x=4.
4)a= -1.
5)b=15.
6)x=16.

Answer 2

I)5x+2=3x+12
5x-3x=12-2
2x=10
x=10/2
x=5
ii)6y-9=2y+15
6y-2y=15+9
4y=24
y=24/4
y=6
iii)2x-3=9-x
2x+x=9+3
3x=12
x=12/3
x=4
iv)2a-5=8a+1
2a-8a=5+1
-3a=6
a= -6/3
a=-2
v)b+3=33-b
b+b=33-3
2b=30
b=30/2
b=15
vi)1.9x+3.6=2.5x+3
1.9x-2.5x=3-3.6
-1.7x= -0.6
x= (-1.7)/(-0.6)
x=2.8