Answer:
Algebra is a branch of mathematics that substitutes letters for numbers. Algebra is about finding the unknown or putting real-life variables into equations and then solving them. Algebra can include real and complex numbers, matrices, and vectors.
An equation is a mathematical sentence that has two equal sides separated by an equal sign. 4 + 6 = 10 is an example of an equation. ... For example, 12 is the coefficient in the equation 12n = 24. A variable is a letter that represents an unknown number.
The third one..............
The answer is D!!! I’m pretty sure
Answer:
30 + 3
Step-by-step explanation:
We are multiplying 5 and x.
5*x
=5*6
=30
The y is alone.
y
=3
Let's solve it.
30 + 3 = 33.
x=6
y=3
hope this helped.
27 is the answer to this question