⇒ Solution 4x +7y =6
1) <span>
Subtract 7y from each side</span><span>4x=6−7y
</span>
2) <span>
Divide each side by 4</span>x=
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6x + 5y =201)
<span>
Subtract <span>
5y</span>
from each side</span><span>6x=20−5y
</span>
2) <span>
Divide each sides by 6</span>x=
3) <span>
Factor out the common term 5</span>x=
Answer:
l = (P-2w)/2
Step-by-step explanation:
P = 2l + 2w
move 2w to the left to leave the l variable by itself
P - 2w = 2l
divide by 2 on both sides to leave l by itself
(P - 2w) / 2 = l or l = (P - 2w) / 2
Answer:
y = -2x - 3
Step-by-step explanation:
The altitude will be a line perpendicular the the opposite side DE.
The slope of DE = (3 - -1) / (3 - -5)
= 4/8 = 1/2
So the slope of the altitude = -1 / 1/2 = -2
Thus the equation of the altitude through F (1, -5) can be found using the point-slope form y - y1 = m(x - x1):-
y - -5 = -2(x - 1)
y + 5 = -2x + 2
y = -2x + 2 - 5
y = -2x - 3 (answer)