we know that
The sum of the internal angles of a triangle must be equal to degrees
see the attached figure with letters to better understand the problem
m∠B+°-----> by supplementary angles
m∠B=
m∠A=
m∠C=
m∠A+m∠B+m∠C=
Substitute
therefore
the answer is
the value of x is equal to
3x+3x+3x+y+3*2 ?
I only seperated the variabled number
Answer:
(-7,0)
Step-by-step explanation:
step 3 has incorrect justification.
because it was combine like terms but 8 is still in left hand side. So,combine like terms 3 has incorrect justification.
Answer:The answer is 1040