Question

For simulteneous equation in variables x and y Dx = 49, Dy = -63, D = 7 then what is

x ?

a) 7 b) -7 c) -9 d) 9
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Answer 1

Answer:

answer:7

Step-by-step explanation:

Dx=49 as D value is 7

7×x=49

x=49÷7=7