Answer:
28.26
Step-by-step explanation:
Don't lie please give brainliest
Answer:
x + 7
Step-by-step explanation:
5 + (x + 2) = x + 7
#10:
15·12=180
180÷3=60
60·22=1,320
Algebra is made up of quantities and the operations performed on them are addition, subtraction, multiplication and division.
<span>Algebra is a branch of mathematics. It concerns itself with operations on sets of numbers or other elements. The sets of numbers and elements are represented by symbols. Algebra can be seen as a generalisation of arithmetic. Letters are substituted for numbers in Algebra. For example, x + 2x will always equal 3x no matter what values the symbol x represents. The algebraic can also include polynomial functions of one or more of the variables. </span>
