document.write( "Question 111402: 4x+13=-9-3(x+9);x=-7 \n" ); document.write( "
Algebra.Com's Answer #81297 by BrittanyM(80)![]() ![]() ![]() You can put this solution on YOUR website! This problem is asking for us to prove that each side of the equation is equal when x is equal to negetive seven. So we plug negetive seven into the equation in place of x.\r \n" ); document.write( "\n" ); document.write( "4(-7)+13=-9-3[(-7)+9] \n" ); document.write( "-28+13=-9-3(2) \n" ); document.write( "-15=-9-6 \n" ); document.write( "-15=-15\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |