Answer:
u = -10
Step-by-step explanation:
u + (−5) = −15
u − 5 = −15 distributive multiplication, think of it like 1 * -5 = -5
u = -10 add 5 to both sides of equality
Commutative i believe <span />
Answer:
∠C° = 138°.
Step-by-step explanation:
Given : Figure.
To find : Which is the measure of angle C
Solution :We have given that
We can see from the given figure angle C and angle 45 are formed on a line.
So, it formed linear pair angle
According to property : Sum of linear pair angle is 180 degree.
Then ,
∠42° + ∠C° = 180°.
On subtracting both sides by 42.
∠C° = 180 -42.
∠C° = 138°.
Therefore, ∠C° = 138°.
