<span><span><span><span>2a</span>−9</span>+<span>2a</span></span>=<span><span><span>−<span>2a</span></span>+15</span>+<span>2a</span></span></span><span><span><span>4a</span>−9</span>=<span>15
</span></span>Step 2: Add 9 to both sides.<span><span><span><span>4a</span>−9</span>+9</span>=<span>15+9</span></span><span><span>4a</span>=<span>24
</span></span>Divide both sides by 4.<span><span><span><span><span>4a/</span>4</span></span></span>=<span><span>24/<span>4
</span></span></span></span>Answer:<span>a=<span>6</span></span>
Answer:
N = 8/4
Step-by-step explanation:
Multiply all terms by n and cancel:
1/2+1/2+1/2=7N
8/7=7n (Simplify both sides of the equation)
7n=8/7/7
-
7
(Divide both sides by 7)
n=
8/49
Answer:
14
Step-by-step explanation:
when you add all the numbers together you get 14, also where you put the line you can see that the line is a 3 and 5 minus 2 is 3. The next corner next to the 3 is 1 cm because if you look at the horizontal 2 it matches up with the horizontal 1 and 2 minus 1 is 1.
P = 2(L + W)
P = 68.4
L = 4W + 9.7
68.4 = 2(4W + 9.7 + W)
68.4 = 2(5W + 9.7)
68.4 = 10W + 19.4
68.4 - 19.4 = 10W
49 = 10W
49/10 = W
4.9 = W <==== the width is 4.9 cm
L = 4W + 9.7
L = 4(4.9) + 9.7
L = 19.6 + 9.7
L = 29.3 <=== the length is 29.3 cm
