Answer:
x = 15
Step-by-step explanation:
the 2 angles are a linear pair and sum to 180° that is
8x - 3 + 4x + 3 = 180
12x = 180 ( divide both sides by 12 )
x = 15
The answer would be (-7x+8), the -1 basically means to switch the symbols
Answer:
9
Step-by-step explanation:
2*2=4*2=8+2=10-1=9
