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3 years ago

How would i solve this problem 2x-5=4x-1?

Mathematics

2 answers:

VikaD [51]3 years ago

7 0

2x-5=4x-1
+5= +5
2x=4x+4
-4x=-4x
-2x=4
x=-2

kow [346]3 years ago

5 0

<em>2 x - 5 = 4 x - 1
combine variables and constants we get
2 x - 4 x = -1 + 5
- 2 x = 4
dividing - 2 on other side
x = 4 / - 2
x = - 2 answer...</em>

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A granola bite contains 27 calories. Most of the calories come from c grams of carbohydrates. The rest come from other ingredien

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Answer:

a. 5 represents the number of calories that come from other ingredients.

b. Neither 8 nor 3 satisfy the given equation, so neither 8 nor 3 can be the solution to the equation.

c. <em>c = 5.5</em>

Step-by-step explanation:

We are given the equation:

$4c + 5 = 27$

Where $c$ represents the grams of carbohydrates

27 is the total number of calories that are received by the granola bite.

4 is the number of calories from 1 gram of carbohydrates and

5 is the number of calories that are received from other ingredients.

Answer of Part a:

5 is the number of calories that are received from other ingredients.

Part b:

Let us take left hand side (LHS) and put values of c = 8 and 3 one by one.

So, LHS becomes:

4 \times 8 + 5 = 37 $\neq RHS\ i.e.\ 27$

4 \times 3 + 5 = 17 $\neq RHS\ i.e.\ 27$

So, Priya is correct that neither 8 or 3 could be solution.

Part c:

$4c + 5 = 27\\\Rightarrow 4c = 22\\\Rightarrow \bold{c = 5.5}$

So, solution to the equation is: <em>c = 5.5</em>

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<h2>Answer:</h2>

We will use substitution to solve this system for x.

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D. $(-3, -15)$

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Since the equation checks out, our solution is correct.

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