Answer:
a = -1/4
Step-by-step explanation:
Substitute the given solution into the equations
2x + y = 8
2(2a) + (9) = 8
4a + 9 = 8
Rearrange to get a alone
4a = 8 - 9
4a = -1
a = -1/4
2a = 2(-1/4) = -1/2
Solution = (-1/2, 9)
<span>=<span><span><span><span><span><span><span>2x</span>+<span>−<span>8x</span></span></span>+<span>−<span>6y</span></span></span>+9</span>+<span>−14</span></span>+x</span>+<span>11y
</span></span></span><span>=<span><span><span>(<span><span><span>2x</span>+<span>−<span>8x</span></span></span>+x</span>)</span>+<span>(<span><span>−<span>6y</span></span>+<span>11y</span></span>)</span></span>+<span>(<span>9+<span>−14</span></span><span>)
= -5x+5y+-5
= -5x+5y-5
Answer is = -5x+5y-5
</span></span></span></span>
Answer:
m = 18/4 = 9/2 = 4.5
Step-by-step explanation:
Notice that the line passes through (0, 0) and (4, 18). Thus, its 'rise' is 18 - 0, or 18, and its 'run' is 4 - 0, or 4, and the slope (which is the desired constant of proportionality) is m = 18/4 = 9/2 = 4.5 This is Answer B
A. because this happened to my sister 4 times already
Answer:
2x-y=7
Step-by-step explanation:
y-5=2(x-6)
y-5=2x-12
2x-y-12=-5
2x-y=-5+12
2x-y=7