3x+7=-x-1
move -x to the other side
sign changes from -x to +x
3x+x+7=-x+x-1
3x+x+7=-1
4x+7=-1
move 7 to the other side
sign changes from +7 to -7
4x+7-7=-1-7
4x=-8
Divide by 4 for both sides
4x/4=-8/4
Answer: x=-2
Let, the length of garden = l
Perimeter(P) = 2(l+w)
42 = 2(l+6)
42 = 2l + 12
2l = 42 - 12
l = 30/2
l = 15
So, the length would be 15 meter
Hope this helps!
Answer:
1 quart of red per 6 quarts of yellow
Or 1:6
Step-by-step explanation:
Answer:

Step-by-step explanation:
Weight from before + Weight gained

Convert to improper fractions.

Find the common denominator.

Add.

Convert to a mixed fraction.

Answer:
$2,072.56
Step-by-step explanation:
Compound interest formula is expressed as;
A = P(1+r) ^ n
A = 960(1+0.08) ^ 10
A = 960(1.08)^10
A = 960(2.1589)
A = 2,072.56
Hence the amount in Benny's account after 10 years is $2,072.56