Question

solve

15/4-7x = 9 and check your result

Answer 1

15/4-7x=9
Taking denominator to other side
15=9(4-7x)

15=36-63x
Taking 36 other side

15-36=-63x

-21=-63x

X=-21/-63
-,- become +and 21 and 63 goes 3 times

X=1/3

Answer 2

given :- 15/4 - 7x = 9

➡ -7x = 9 - 15/4

LCM of 1 and 4 = 1 × 4 = 4

LHS :- (9 × 4)/(1 × 4) - 15/4

= 36/4 - 15/4

= 21/4

➡ -7x = 21/4

➡ -x = 21/4 × 1/7

➡ -x = 3/4

➡ x = -3/4

VERIFICATION :-

RHS -

= 15/4 - 7(-3/4)

= 15/4 + 21/4

= 36/4

= 9

hence verified.