A school needs 25 butterfly breeding kits, and places an order with an educational company. They already have 7 kits, and they receive a box with x kits, but still need 3 more kits. Write the equation that you can use to find out how many kits are in the box.

Respuesta :

You can write an equation like this:


7 + x = 25 - 3


The amount they have (7) plus the amount they received (x) is 3 less than the amount they need (25). It simplifies to:


7 + x = 22


To solve, isolate the variable by subtracting 7 from each side:


x = 15


The box contained 15 kits.

The box contained 15 kits, and the equation for the kits is 7 + x = 25 - 3.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

A school needs 25 butterfly breeding kits and places an order with an educational company.

They already have 7 kits,they  and they receive a box with x kits, but still, need 3 more kits.

The linear equation:

7 + x = 25 - 3

After solving:

7 + x = 22

x = 22 - 7

x = 15

Thus, the box contained 15 kits, and the equation for the kits is 7 + x = 25 - 3.

Learn more about the linear equation here:

brainly.com/question/11897796

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