4m+5a+x-6 this is just one example you could switch it around it even use different numbers but that expression does have 4 terms, three different variables, and one constant, hope this helps:)
Answer:
It would be
a plus 4 divided by 7
Step-by-step explanation:

+ 15 = 64 Subtract 15 from both sides
<span>

= 49 Find the square root of both sides to cancel out the </span>

x + 5 = 7 Subtract 5 from both sides
x = 2<span>
</span>
Answer:
12-x
Step-by-step explanation: