Question

Question no. 19 solve urgent

Answer 1

Answer:

z=8.53892 or z= 0.88965

Step-by-step explanation:

(4z+17)/18-(13z-2)/(17z-32)+z/3=(z+60)/36

2.

((17z-32)(4z+17)-18(13z-2)+6z)/(18(17z-32)) = (z+60)/36

here denominators 18 and 36 cancel so rhs denominator remains 2

3. criscross method rhs denominator 2 multiply to lhs numerator lhs denominator 17z-32 multiply to rhs numerator and also solving lhs numerator

2(68z²+289z-128z-544-234z+36+6z) = (z+60)(17z-32)

= (17z²-32z + 1020z -1920)

4.

136z²+578z-256z-1088-468z+72+12z=(17z²-32z+1020z-1920)

5. solving we get equation

119z²-1122z+904= 0

Above quadratic equation can solve by root formula

z =( -b+or-√(b²-4ac))/2a

z= (1122+-√(1122²-4(119)(904))/2(119)

solving z=8.53892 or z=0.88965