D2 = 49, 17 = 63 ;D = 7 what is x? 11

For simultaneous equations in variables x and y, D_x = 49, D_y = - 63, D = 7 then what is x ?

For simultaneous equations in variables x and y, D_x=49,D_y=-63 , D=7 then what is x? a) 7 b) -7 c) 1/7 d) -1/7

Choose the correct alternative for each of the following questions: For simultaneously equations in variables x and y, if D_x=49,D_y= -63 and D=7, then what is the value of X ?

For simultaneous equations in x and y , if D_(x) = 49 D_(y) = - 63 and D = 7 , then what is the value of x ?

(49x - 63) + 7 = ___

If A = { 3, 5, 7, 9, 11 }, B = {7, 9, 11, 13}, C = {11, 13, 15} and D = {15, 17} , find A ∩ C ∩ D

If A = { 3, 5, 7, 9, 11 }, B = {7, 9, 11, 13}, C = {11, 13, 15} and D = {15, 17} , find B ∩ D

If A = { 3, 5, 7, 9, 11 }, B = {7, 9, 11, 13}, C = {11, 13, 15} and D = {15, 17} , find A ∩ D