Question

solve for:4cos(pi)x+5=7

Answer 1

try this
subtract 5 both sides
4cos(pi)x=2
cos(pi)x=(1/2)
cos inverse both sides
(pi)x=60 degree
60 degree also called (pi/3)
so final answer is
x=1/3 may be i am wrong

Answer 2

u r correct

Answer 3

Thanks jimmy

Answer 4

yw