Question

1)John sold his TV set for 14100 rupees losing 6%. For how much did he purchase it?
2)Solve :3(x+1)-2(x-2)=3(x+4)-3x-15
3)The vertical angle of an isosceles triangle is twice the of its base angle.Find each angles of the triangle.

Solve it ​

Answer 1

2) 3(x+1)-2(x-2)=3(x+4)-3x-15

3x+3-2x+4=3x+12-3x-15

3x-2x+3+4=3x-3x+12-15

x+7=x-3

x-x=-3-7

x=-10