Answer:
x=-7k/4(9-k) +63/4(9-k)
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
Answer:
7x+-4y
Step-by-step explanation:
Answer:
5x=90 x=90/5=18. So, the answer is 18.
Answer:
the answer is 6
Step-by-step explanation: