Simply by these expression
and find there values if
x=3 , a=-1 ,b=-2
3x-5a-x+9b
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Answer:
-7 is the correct answer.
Step-by-step explanation:
==> We know that, x=3,a=-1,b=-2.
Put value of X, A, B.
3(3)-5(-1)-(3)+9(-2)
= 9-(-5)-3+(-18)
= 9+5-3-18
= 14-21
= -7
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