Answer:
x = 10
Step-by-step explanation:
3x - 9 = 21
add 9 on both sides:
⇒ 3x - 9 + 9 = 21 + 9
⇒ 3x = 30
divide 3 on both sides:
⇒ 
⇒ x = 10
to check answer, substitute x by 10 on the original equation:
⇒ 3x - 9 = 21
⇒ 3 x 10 - 9 = 21
⇒30 - 9 = 21
⇒ 21 = 21
Im pretty sure this is right
Answer:
T = {(5, – 2), (6, 7), (-3, 10), (-6, -7)}
what to find
I think this question is incomplete
hope it is helpful to you
Graph A is the best hope this helps!!
Answer:
Step-by-step explanation:
-18x + 21 > -15 20x - 13 > 27
-18x > - 15 - 21 20x > 27 + 13
-18x > -36 20x > 40
x < -36/-18 x > 40/20
x < 2 x > 2
x < 2 OR x > 2
