Answer:
? = 3x
Step-by-step explanation:
2(? + 5) = 6x + 10
You must plug in a number that will get the same value on both sides of the equal sign.
2*5 = 10
2*? = 6x
6x/2 = 3x
Answer
B) x + 20 ≥ 50
B
2(t+1) = 102(t+1)=10
distribuite 2t+2=10
-8 2t=8
t=4
