Find the value of 3p-2q+7 when p=-1 and q=4
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Given :-
equation :- 3p - 2q + 7
the value of p = -1
the value of q = 4
solution :-
put the value in equation
3p - 2q + 7
= 3( -1 ) - 2( 4) + 7
= -3 - 8 + 7
= -11 + 7
= - 4 is your answer mate.
some important points
( - , - ) becomes +
( - , + ) becomes -
( + , + ) becomes +
if the minus digit is greater so we put - sign in equation
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