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4/9 to -2/9 = -2/3
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4/9 -4/9 = 0/9
0/9 + (-2/9) =-2/9
-4/9+-2/9= -6/9
-6/9=-2/3
The answer is -2/3
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You know b=-6 and since you know this, you can plug -6 in for b.
This would become 4(-6) + 6 divided by 6.
You can then multiply 4 and -6 together,
-24 + 6 / 6
You can then add -24 and 6 together,
-18/6
You can then divide -18 by 6,
-18/6=-3
-3 is your final answer
These are corresponding angles so angle 1 = angle 3, or by substitution, 9x=117. x = 13