Answer:
y=-2
Step-by-step explanation:
you are solving for the variable y
add 3 to the opposite side, so it cancels out
y=-5+3
y=-2
The answer would be log62...
Answer:

Step-by-step explanation:
{90° = m∠1 + m∠2
{105° = 2m∠1 - m∠2
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All you have left to do is this:

So, your two angle measures are 
I am joyous to assist you anytime.
Answer:
w=4
Step-by-step explanation:
adding a negative is like subtracting so w=11-7