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just olya [345]
3 years ago
13

JR - Parsons

Mathematics
1 answer:
Serjik [45]3 years ago
6 0
Will answer in a few
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Sarah, Fiona and David share £40 in a ratio 3:3:2. How much money does each person get?
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ratio:3:3:2

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Step-by-step explanation:

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What is the first step to solve the following system of equations using substitution?
Akimi4 [234]

Answer:

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

Thus, option A) is true.

The solution to the system of equations be:

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Step-by-step explanation:

It is important to remember that when we solve the system of equations, the first step we need to do is to solve one of the equations for one of the variables.

Given the system of equations

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x-y=-1

Add y to both sides

x-y+y=-1+y

x=-1+y

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<u>NOW LET US SOLVE THE REMAINING PORTION</u>

\mathrm{Subsititute\:}x=-1+y to solve for y

\begin{bmatrix}2\left(-1+y\right)-y=3\end{bmatrix}

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y=5

For x = -1 + y

substitute y = 5

x=-1+5

x=4

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x = 4, y = 5

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