Question

1/3x+6=21
1/5x+3=7
0.02x+0.35=1.25

Answer 1

a. 1/3x+6=21
1/3x=15
X= 45
b. 1/5x+3=7
1/5x=4
X=20
c. 0.02x+0.35=1.25
2/100x+35/100=125/100
2x+35=125
2x=90
X=45