All triangles add up to 180 degrees so I don’t get the just of the question but there you go.
-6a-12b+18c+24d-8a-3b+4c+2d=-6a-8a-12b-3b+18c+4c+24d+2d=
=-14a-15b+22c+26d
Answer:
-2
Step-by-step explanation:
2x+5-7x=15
Combine like terms
-5x+5=15
Subtract 5 from both sides
-5x=10
Divide -5 from both sides
x=-2
Seeing that this is over a year old i doubt this does you any justice but the answer is 4%