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3 years ago

5

Solve the equation 55=7-6y

2 answers:

sweet [91]3 years ago

4 0

Answer:

55-7=48

48÷-6=-8

y=-8

......

Lelechka [254]3 years ago

4 0

Answer:

-8 = y

Step-by-step explanation:

55=7-6y

Subtract 7 from each side

55-7=7-6y-7

48 = -6y

Divide each side by -6

48/-6 = -6y/-6

-8 = y

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How do you work out 1 2/3÷3/4

lord [1]

The answer can be 20/9 or 2 and 2/9 or 2.2.
Step by step explanation:
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7 0

3 years ago

Read 2 more answers

What is the value of c so that -9 and 9 are both solutions of x2+c=103

Debora [2.8K]

Answer:

$c=22$

Step-by-step explanation:

Given equation:

$x^2+c=103$

Solutions: -9 and 9

To solve for $c$

Solution:

The solutions of the equation means $x=-9$ and $x=9$

We will plugin the solutions in the equation and solve for $c$

1) when $x=-9$

$(-9)^2+c=103$

$81+c=103$

Subtracting both sides by 81.

$81+c-81=103-81$

∴ $c=22$

2) when $x=9$

$(9)^2+c=103$

$81+c=103$

Subtracting both sides by 81.

$81+c-81=103-81$

∴ $c=22$

So, for both solutions we get $c=22$

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