a) Five times the difference of a number and two is seven more than that number

b) Twice a number decreased by four is greater than ten, what numbers satisfy this condition?

2X-410
2X14
X7
Is b) right?

c) Twice a number decreased by two is equivalent to than number increased by five.

Question

a) Five times the difference of a number and two is seven more than that number

b) Twice a number decreased by four is greater than ten, what numbers satisfy this condition?

2X-4>10 
                   2X>14 
                     X>7
Is b) right?

c) Twice a number decreased by two is equivalent to than number increased by five.

anonymous · Answer

a) 5|a - 2| = a + 7

two solutions: a = 0.5 or a = 4.25

anonymous · Answer

b) x > 7

c) 2*x - 2 = x + 5

x = 7