Answer:
8)
x = 2
m<FED = 168
9)
x= 7
m<ABE = 64
Step-by-step explanation:
8)
m<FED = m<WED + m<FEW
83x + 2 = 148 + 11x - 2
83x + 2 = (11x) + (148 + (-2) : Combining like terms
83x + 2 - 11x = 11x - 11x + 146 : Subtract 11x from both sides
72x + 2 = 146 : Simplify
72x + 2 - 2 = 146 - 2 : Subtract 2 from both sides
72x = 144
72x / 72 = 144 / 72
x = 2
m<FED = 83(2) + 2
m<FED = 168
9)
m<ABC = m<ABE + m<EBC
23x+1 = 9x+1 + 98
23x + 1 = (9x) + (1+98)
23x + 1 = 9x + 99
23x - 9x + 1 = 9x - 9x + 99
14x + 1 = 99
14x + 1 - 1 = 99 - 1
14x = 98
14x / 14 = 98 / 14
x = 7
m<ABE = 9(7) + 1
m<ABE = 64
