Question

an unknown number is decreased by five and increased by two . the result is -10

Answer 1

work backwards. start with -10. If the last step was increase by 2, then subtract. your answer is -7

Answer 2

x - 5 + 2 = -10

Answer 3

x-5+2=-10
+5 -2 +5 -2

x = ?

Answer 4

so i add 5 both sides ?

Answer 5

Add 5 to both sides, and subtract 2 from both sides

Answer 6

an unknown number is multiplied by 3 and divided by -4 . the result in -6

Answer 7

(3x/-4) = -6
multiply both sides by -4 and solve