joshi kratika

match them- a) 2(x+3)-5(x-2)=3 1) x= 13/3 b) 7x+2/2=2x+5/3 2) x=4/17 c) 3(2x+5)-2(4x+3)=5 3) x=2

Give reasons 1) Every parallelogram is not a rectangle. 2) Every rhombus is not square. 3)It is possible to have exterior angle of a regular polygon as 40 degree. 4) It is not possible to have interior angle of regular polygon as 145 degree.

Match them- a (a-b) is a rational number 1) distributive property b) a+0=0+a=a 2) associative property c) a*(b+c)=a*b+a*c 3) closure property d) a*b=b*a 4) commutative property e) a+(b+c)=(a+b)+c 5) additive identity