Answer:

Step-by-step explanation:

Answer:
T3 = 30
Step-by-step explanation:
9x + 3y - 6z = 18. 6. 3x-5y+10z= 15.
10x + 4y+5z = 20
Answer:
infinite
Step-by-step explanation:
after distributing:
56x-40 = 56x-40
if both sides are equal then there are infinite values of 'x' that will make the equation true