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Romashka-Z-Leto [24]
3 years ago
12

4x+y+6z=7 3x+3y+2z=17 -x-y+z=19

Mathematics
1 answer:
alisha [4.7K]3 years ago
3 0

Answer:

the 2nd one

Step-by-step explanation:

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15 divided by 2 1/2

Step-by-step explanation:

$6 per yard.

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Can you help me out please
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Step-by-step explanation:

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What is the value of k?<br><br> -3 ( k + 7 ) - 5k + 4 = 23
Digiron [165]

Answer: k = -5

explanation-

distribute: -3k + -21 - 5k + 4= 23

combine: -8k -17 = 23

add 17 to both sides: -8k = 40

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6 0
3 years ago
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Which symbol, &gt;, &lt;, or = will complete the statement
trapecia [35]

Answer:

<

Step-by-step explanation:

-4.2 + 1.5 = -2.7 and -5.4 + 2.1 = -3.3

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7 0
2 years ago
Read 2 more answers
Simplify the expression 8^2 +9 (12/3x2)- 7
Zarrin [17]
1)12 ÷ 3 = 4. 
2) 4×2= 8.
3) 9× 8= 72.
4) 8² = 64
5) 64+ 72 = 136
6) 136 - 7 = 129.

If you just want to simplify the expression you get: 8² + 9(8) - 7
But when you simplify that you get the answer below. 
ANSWER: 129
6 0
3 years ago
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