Could you guys please solve these equations?
1 answer:
Answer:
x = 4
b = 7
n = 40
I hope this helps!!!
Step-by-step explanation:
1) 12x-17 = 6x+7
+17 +17
*do this because you want to get all of the variables to one side and all of the constants to one side*
12x = 6x + 24
-6x -6x
6x = 24
*divide by 6 to get x alone, so you 24/6 = 4*
x = 4
2) -8b+1 = -5(b+4)
*must multiply -5 by everything in the parenthesises*
-8b+1 = -5b-20
-1 -1
-8b= -5b-21
+5b +5b
-3b = -21
b = 7
3) 350+10(n-7) = 630+2(n-15)
350+10n-70 = 630+2n-30
*combine like terms on both sides of the equation*
280+10n = 600+2n
-280 -280
10n = 320+2n
-2n -2n
8n = 320
n = 40
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The answer is letter 4 you can prove this replacing each pair in the function y=3x+5, and it is a straight line because the greatest exponent of this function is 1.
x + y + z
Substitute the given values for x, y, and z. (3) + (-5) + (-2)
3 - 5 - 2
Solve from left to right. 3 - 5 = -2
-2 - 2 = -4
<h3>Your answer is -4.</h3>
Answer:
6,812,019 ft cubed
Step-by-step explanation:
1/3(b*h)
1/3(153^2*873)
1/3(23,409*873)
1/3(20,436,057) = 6,812,019
After simplifying both sides of the equation and isolating the variable, x = 4
