Question

solve (2z-7)-3(3z+8)=4z-9 and check​

Answer 1

Step-by-step explanation:

(2z-7)-3(3z+8)=4z-9

2z-7- 9z - 24 =4z-9

2z -9z -4z = -9+24 +7

2z -13z = -9+31

-11z = 22

z = -22/11

z = -2

check the result

put z = - 2 in the question

(2z-7)-3(3z+8)=4z-9

(2 x -2 -7) -3(3 x -2 +8) = 4x (-2)-9

(-4-7) -3(-6+8) = -8-9

-11-3 x 2= -17

-11-6 =-17

-17 = -17

LHS = RHS

Answer 2

Hey there !

solution:

the answer is -17=-17

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