Answer:
<u>(-7,-3)</u>
Step-by-step explanation:
step one) solve one equation for x.
y=-3x
-3x/-3=y/-3
x=(-y/3)
step two) plug in x for the other original problem.
y=x-4
y=(-y/3)-4
step three) solve for y.
y=(-y/3)-4
y+4=(-y/3)-4+4
3*(y+4)=(-y/3)*3
3y+12=-y
(3y+12)-3y=-y-3y
12/-4=-4y/-4
y=-3
step four) plug in -3 for y and solve for x.
y=x-4
-3=x+4
-3-4=x+4-4
-7=x
<em>I am in algebra two so you can trust my answer. if you need more help lmk in the comments. happy holidays and stay safe!</em>
Answer:
Please see attachment
Step-by-step explanation:
Please see attachment
Answer:
answer is -9
Step-by-step explanation:
5(x+1)=4(x-1)x
5x+5=4x-4+x
5x+5=4x+x-4
5x+5=5x-4
5x-5x=-4-5
x=-9
Perimeter is 10x^2 y + 6y^3
Area is 15x^2 y^3
Answer:
14
Step-by-step explanation:
When rounding to a whole number, you round down if the decimal in the 10th's place is below 5, you round up if the decimal is 5 or above.
Ex: 12.4 rounds down to 12 because there is a 4 in the 10th's
12.5 rounds up to 13 because there is a 5 in the 10th's place
14.47 rounds down because there is a 4 in the 10th's place, the 7 in the hundredth's place would only affect the 4 in the 10th's place when rounding. It wouldn't affect the 14.
