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Mice21 [21]
4 years ago
7

1/2b+9/4=7/4 solve the equation

Mathematics
1 answer:
AlladinOne [14]4 years ago
4 0
First subtract 9/4 from each side

1/2b=-2/4

Simplify the 2/4

1/2b=-1/2

Divide each side by 1/2

b = -1
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Step-by-step explanation:

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vovangra [49]

Answer:

y=7x-26

Step-by-step explanation:

1) Write it in the slope-intercept form of y=mx+b, where m is the slope and b is the y-intercept.

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2) Substitute the given coordinates into y=7x +b, and then solve for c.

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6 0
2 years ago
Solve for x &amp; y solve x = 3 + yy = -2x + 9
sergey [27]

x = 3 + y Eqn(1)

y = -2x + 9​ Eqn(2)

Let us solve the system of equations with the substitution method

x - 3 = y (Subtracting 3 from both sides of the Eqn(1))

Replacing y = x - 3 in Eqn (2), we have:

x - 3 = -2x + 9

x = -2x + 9 + 3 (Adding 3 to both sides of the equation)

x + 2x = 9 + 3 (Adding 2x to both sides of the equation)

3x = 12 ( Adding like terms)

x = 12/3 (Dividing by 3 on both sides of the equation)

x = 4

Replacing x=4 in Eqn(1), we have:

4 = 3 + y

4 - 3 = y (Subtracting 3 from both sides of the equation)

y=1

The answers are:

x= 4 and y=1

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motikmotik

Step-by-step explanation:

here

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Now

f(4y)=2*4y^2-1

6 0
1 year ago
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