The sum of c and 4
The phrase "The sum of c and 4" can be translated into an algebraic expression as "c + 4".
An algebraic expression is a mathematical representation that consists of variables, constants, and operations like addition, subtraction, multiplication, and division. It doesn't have an equal sign, so it doesn't form an equation. For example, "3x + 2" or "5a - 7b" are algebraic expressions.
The phrase "The sum of c and 4" can be translated into an algebraic expression as "c + 4". In this expression, 'c' represents a variable, and '4' represents a constant. The addition operation between them signifies that you need to add the value of 'c' to 4. This algebraic expression can be evaluated once you have a specific value for 'c'.
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Answer:
C+4
Step-by-step explanation:
-3x-2y=-12 by substitution
Answer: x = 0.25, y = 5.625 or (,
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Step-by-step explanation:
To solve by substitution, we will first isolate one of the variables in one of the given equations.
-7x - 2y = -13 ➜ y = -3.5x + 6.5
Then, we will substitute this into the other given equation and solve for x.
-3x - 2y = -12
-3x - 2(-3.5x + 6.5) = -12
-3x + 7x - 13 = -12
4x = 1
x = 0.25
Lastly, we will substitute this value of x into the equation we solved for to find y.
y = -3.5x + 6.5
y = -3.5(0.25) + 6.5
y = 5.625