Question

r + (-4) > 17

Answer 1

r>17+4
r>21

Answer 2

you can add and subtract both sides of the inequality without chaning the direction of the inequality, changing directions only occurs when it is multiplied or divided on both sides by a negative value

Answer 3

r>\[(17,\infty )\]

Answer 4

ok now?

Answer 5

oh and for another one, [g- (-5) > 25, its 20, but where would the > go?

Answer 6

since you can add 5 to both sides, the inequality doesnt change

Answer 7

If r + (-4) is more than 17 then
r + (-4) + 4 must be more than 17 + 4
But r + (-4) + 4 is the same as r + 0 which is just r so..
r must be more than 17 + 4
But 17 + 4 is 21 so..
r must be more than 21.

Answer 8

i mean if you subtract the inequality doesnt change*

Answer 9

oh okay.. man ur all smart

Answer 10

since g-(-5) is the same as g+5 so
g+5>20
you can just subtract both sides and the inequality remains the same direction as it isnt not multiplied by a negative value

Answer 11

g+5>25 ... im off in my typing today
so subtracting both sides by 5 gets you
g>20

Answer 12

g - (-5) is the same as g+5 so..
g - (-5) > 25 is the same as g+5 > 25

If g+5 > 25 then..
g+5-5 must be more than 25-5
But g+5-5 is just g and 25 - 5 is just 20 so
g must be more than 20.

Answer 13

ohkay, thannks!!