Answer:
32
Step-by-step explanation:
Remark
Every triangle has 180 degrees as the total of its 3 angles.
Equation
x + 98 + 50 = 180
Solution
Combine the like terms on the left
x + 148 = 180
Subtract 148 fro both sides of the equation
x + 148- 148= 180 - 148
Combine
x = 32
x is 32 degrees in size
I think system 4 has no solution
I'm sorry if you get it wrong
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