Question

3(5z-7)-2(9z-11)=4(8z-13)-17​

Answer 1

Let the SOLUTION of EQUATION

3( 5z - 7 ) - 2(9z- 11) = 4(8z- 13)- 17

=> 15z -21 - 18z + 22 = 32z - 52 -17

=> - 3z + 1 = 32z - 69

=> -3z - 32z = - 69 - 1

=>- 35z = -70

=> 35z = 70

=> z = 70/ 35 =2

[ Note :-

If we have -a(x-p) then while multiplying there occurs change of sign

ie (-ax + ap) ...plz note it otherwise you cannot be in right path to solve it. ]

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