Answer:
equation: 7x - 25 < -39
solution: x < -2
Step-by-step explanation:
let the number be x
"product of a number and 7" : 7x
"25 subtracted from the product ..." : 7x - 25
"..... is less than -39) : 7x - 25 < -39
solving equation
7x - 25 < -39 (add 25 to both sides)
7x < -39 + 25
7x < -14 (divide both sides by 7)
x < -14 / 7
x < -2
