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bee1538
16.02.2021 •
Mathematics
What is the value of x if 2.5(x + 4) = 4.75?
Plz help this is a timed quiz
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Ответ:
x = -2.1
Step-by-step explanation:Simplifying
2.5(x + 4) = 4.75
Reorder the terms:
2.5(4 + x) = 4.75
(4 * 2.5 + x * 2.5) = 4.75
(10 + 2.5x) = 4.75
Solving
10 + 2.5x = 4.75
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-10' to each side of the equation.
10 + -10 + 2.5x = 4.75 + -10
Combine like terms: 10 + -10 = 0
0 + 2.5x = 4.75 + -10
2.5x = 4.75 + -10
Combine like terms: 4.75 + -10 = -5.25
2.5x = -5.25
Divide each side by '2.5'.
x = -2.1
Ответ:
-2.1
Step-by-step explanation:
We have an equation and the question is asking us to look for x.
To solve, we must isolate x and get it on its own.
2.5(x + 4) = 4.75
Distribute the 2.5 to get rid of the parenthesis :
(2.5(x) + 4(2.5)) = 4.75
2.5x + 10 = 4.75
Subtract ten from both sides :
2.5x = -5.25
Divide 2.5 by both sides to get x alone :
x = -2.1
Ответ: