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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