Answer:
B. 1
Step-by-step explanation:
I used a calculator
Answer:
no can you help me
Step-by-step explanation:
Answer:
x = -8
Step-by-step explanation:
1) 5x + 7= 7x +23
Move the terms
2) 5x + 7 -7x = 23
Collect like terms
3) 5x -7x = 23 - 7
Calculate
4) -2x = 16
Divide both sides by <em>-2</em>
5) x = -8
X is a unknown
Number you need to find what the total of all the angles will be and the solve for x