6x=120-5y -> x=20-5/6*y -> 7(20-5/6*y) + 11y =202 -> 140-35/6*y + 11y = 202 -> 140+31/6*y=202 -> 31/6*y = 62 -> y = 12.
Answer:
C, 324
Step-by-step explanation:
if you add up all of the numbers it equals to 324, (if you used the right angle)
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I think the answer would be 180
5*2=10 90*2=180
You would divide negative 3 (-3) from both sides to keep the c by itself. When you divide a positive by a negative it becomes negative.
Dividing 15 by -3 would equal -5, so c = -5
Use the substitution method for x
y= 4(-2)-1
y= -8-1
y= -9
Answer is y=-9
