document.write( "Question 929089: Solve the equation. ( Use n as an integer constant. Enter your response in radians.)\r
\n" ); document.write( "\n" ); document.write( " 13 cos x + 7 = −cos x
\n" ); document.write( "

Algebra.Com's Answer #564086 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
13 cos x + 7 = -cos x
\n" ); document.write( "14cos x = -7
\n" ); document.write( "cos x = -7/14
\n" ); document.write( "cos x = -1/2
\n" ); document.write( "x = 2π/3 + 2nπ and x = 4π/3 + 2nπ
\n" ); document.write( "..........
\n" ); document.write( "(cosx, sinx) Summary Unit Circle
\n" ); document.write( ".
\n" ); document.write( "
\n" ); document.write( "
\n" );