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Svet_ta [14]
3 years ago
5

How do you make x the subject of the formula? I need help on this one y= 7x-1​

Mathematics
2 answers:
notsponge [240]3 years ago
7 0

Answer:

x = 1/7(y+1)

or

x = 1/7 y + 1/7

Step-by-step explanation:

y= 7x-1​

Solve for x

Add 1 to each side

y+1 = 7x-1+1

y+1 = 7x

Divide each side by 7

1/7(y+1) = 7x/7

1/7y + 1/7 =x

alina1380 [7]3 years ago
3 0

Answer:

x=\frac{y+1}{7}

Step-by-step explanation:

Hi there!

We want to make x the subject of the formula, which means to solve the formula for x

Here is the given formula:

y=7x-1

Our ultimate goal is to isolate x onto one side

Start by subtracting 7x from both sides

y-7x=-1

Subtract y from both sides to remove it from the left side

-7x=-y-1

Divide both sides by 7

x=\frac{-y-1}{-7}

Simplify (factor -1 out of the numerator and denominator, then cancel it out)

x=\frac{-1(y+1)}{(-1)(7)}

x=\frac{y+1}{7}

Hope this helps!

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