Question

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Answer 1

Answer:

∴ z = 120/19

Step-by-step explanation:

or, (z+6)/4 + (z-3)/9 = (5z-4)/8

or, (z+6)/4 + (z-3)/9 -  (5z-4)/8 = 0

or, {(z+ 6)×18/4×18} + {(z-3)×8/9×8} -  {(5z-4)×9/8×9} = 0

or, 18z+108/72 + 8z-24/72 - 45z-36/72 = 0

or, {(18z+108) + (8z-24) - (45z-36)}/72 = 0

or, (18z + 108+8z - 24 - 45z + 36) / 72 = 0

or, (18z + 8z - 45z + 108 - 24+36) = 0× 72

or, -19z + 120 = 0

or, 120 = 19z

∴ z = 120/19

Answer 2

answer is true.......