Answer:
i think x = 18.5
Step-by-step explanation:
6x-21 = 90°
6x = 90+21
6x = 111
x = 111/6
x = 18.5
Answer:
if you need help with problems like that I suggest algebra calculator or math away
Step-by-step explanation:
8x + 6) - (x + 4)
8x + 6 - (x + 4)
8x + 6 - x - 4
7x + 2
8 x 107 = 856
2 x 104 = 208
856 - 208 = 648