F 4x + 4y = 1 and 4x + 6y = 8, then what is x?

Science & Mathematics by Anonymous 2018-05-18 11:07:54

Social Science

5 answers

Anonymous
Anonymous

4x + 4y = 1 4x + 6y = 8 x = -13/4, y = 7/2
Anonymous

You won't learn unless you do the problem. Ask for help if you need it, not for someone else to do it for you.
Anonymous

x = (1×6-4×8)/(4×6-4×4) = (6-32)/(24-16) = -26/8 = -13/4
Anonymous

4x + 4y = 1 4x +6y = 8 Subtract 2y = 7 y = 7/2 Substitute 4x +4(7/2) = 1 x + 7/2 = 1/4 x = -13/4