Question

0.4x + 8 is less than or equal to 1.2x-7
x (inequality sign) = ?

Answer 1

0.4x + 8 \[\le\] 1.2x-7
0.4x-1.2x\[\le\]-7-8
-0.8x\[\le\]-15
x\[\le\]15/0.8
x\[\le\]18.75