Question 3(Multiple Choice Worth 5 points)
1 answer:
First Equation
STEP 1: Move the variable to the right side and change its sign
3x=8-y
STEP 2: Divide both sides of the equation by 3
x=8/3 - y/3
STEP 3: Write all numerators above the common denominator
x=8-y/3
THE FINAL ANSWER IS:
x=8-y/3
Second Equation
STEP 1: Move variable to the right side and change its sign
-x= -10+2y
STEP 2: Change the signs on both sides of the equation
x=10-2y
THE FINAL ANSWER IS:
x=10-2y
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∠1 = x
∠2 = 2x
∠3 = 3 * 2x = 6x
x + 2x + 6x = 180
9x = 180
x = 180/9
x = 20° ← <span>the first angle
</span>the second angle = 2 * 20 = 40°
<span>the third angle = 3 * 40 = 120</span>°
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60 do the inverse by multiplying the numbers you have
Answer:
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