Seudónimo Seudónimo

01-11-2020
Mathematics

contestada

find the value of x, y and z

find the value of x y and z class=

Respuesta :

meredith48034 meredith48034

01-11-2020

Answer:

Step-by-step explanation:

8x = 9x - 7

-x = -7

x = 7

9(7)-7= 63-7=56

8(7)= 56

13y+7+56=180

13y+63=180

13y=117

y=9

13(9)+7= 117+7= 124

5y-11+56=90

5y+45=90

5y=45

y=9

5(9)-11+9(7)-7= z

45-11+63-7=z

34+56=z

90=z

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