you would do PEMDAS
you do -3 times 4. then you do that and devide by -3.
The answer would be A.
If you fill in x for both you would get
y = (3 * 3) - 5
y = 4
y = (4 * 3) - 8
y = 4
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7. Straight lines are also = to 180°
If you look at the diagram, when you add the two angles together, they form a straight line.
Since the angles add up to 180°, you can do:
(x + 25)° + (4x + 5)° = 180°
x + 25 + 4x + 5 = 180 Combine like terms
5x + 30 = 180 Subtract 30 on both sides
5x = 150 Divide 5 on both sides
x = 30