which one of the following is equivalent to 4x+7 > 9 ?
4x > 9-7
4x > 9 +7
x > 9-7-4
x > 4( 9+7)
4x+7 > 9
Subtract 7 from both sides. we get..
4x+7-7 > 9 -7
⇒ 4x > 9 - 7