Solve the following expression:
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Solve the following expression:
The first step is factorising each of the terms in the exercise into a whole number and its remainder:
Now we'll combine only the whole numbers:
Next, we will calculate the remainder:
Finally, we are left with the following:
17.7
Choose the correct writing form:
You can combine these terms because they're like terms - they all have the same variable (x) raised to the same power (1). Think of it like having 10.1 apples + 5.2 apples + 2.4 apples = 17.7 apples!
Line up the decimal points when adding: write 10.1 + 5.2 + 2.4 vertically. You can also convert to fractions if that's easier, but decimal addition works perfectly fine.
While the explanation breaks it into whole numbers and decimals, you can add directly: . The step-by-step method is just one approach!
You cannot combine them! Different variables (x and y) are not like terms. You can only add coefficients when the variable parts are identical.
Substitute any value for x into both expressions. Try x = 2: Original gives . Simplified gives . They match!
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