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02-09-2021
Mathematics

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Find a is XZ=19,Xy=a+4 and YZ=a-7.

Find a is XZ19Xya4 and YZa7 class=

Respuesta :

02-09-2021

Answer:

a = 11

Step-by-step explanation:

XY + YZ = XZ = 19

(a + 4) + (a - 7) = 19

2a - 3 = 19

2a = 22

a = 11

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