X=-7 divide both side by 3. Any expression divided by itself equals 1. Dividing a positive and a negative equals a negative. Calculate the quotation. Then you get X=-7
Answer:
x = - 2 ±
Step-by-step explanation:
Given
x² = - 4x + 3 ( add 4x to both sides )
x² + 4x = 3
To complete the square
add (half the coefficient of the x- term)² to both sides
x² + 2(2)x + 2² = 3 + 2²
(x + 2)² = 3 + 4 = 7 ← take the square root of both sides
x + 2 = ± ← subtract 2 from both sides
x = - 2 ± ← exact values
Answer:
-14 degrees
Step-by-step explanation:
-8-6=-14
Answer:
y = 3
Step-by-step explanation:
<em>2x + 3y = 9</em>
<em>-2x + 2y = 6</em>
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We have to add these two equations which gives us 5y = 15. Now, if you divide by 5 on both sides you get y = 3.
Two angles are 67.5 degrees and the 3rd angle is 45 degrees.
Formula: 2x + 45 = 180