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Answer:
Substitution Property of Equality
Step-by-step explanation:
The substitution property of equality states that if x = y, then x can be substituted in for y in any equation, and y can be substituted for x in any equation.
In this case, m∠A + m∠B in the second equation is substituted by 88°, from the first equation. This allows as to find m∠C as follows:
88° + m∠C = 150°
m∠C = 150° - 88° = 62°
Answer:
Step-by-step explanation:
So we have y-3=2(x+4)
So the first thing we want to do is distribute the 2 in front of the (x+4)
2(x+4) = 2x+8
Which means we have:
y-3=2x+8
Remember we need to get it into the form y=mx+b
As you can see here the 3 is preventing our equation from being in that form to we need to add it to both sides. This leaves us with:
y - 3 + 3 = 2x+8+3
Which gives: y = 2x+11
Therefore the slope form of this equation is y = 2x+11
Answer:
divide
Step-by-step explanation:
1. 2. 3.
Answer:
Inverse Property
Step-by-step explanation:
This property is inverse property with respect to addition.
E.g.
If x=y and z= -y
Then,
x+z = 0