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For which equation would x = 4 be a solution?28 – 5.25 x = 2.754.25 x + 7 = 244.25 x ÷ 8 = 97 + 3.25 x = 29

User Maxim Makhun
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1 Answer

7 votes
7 votes

Given

The equations,

a) 28 – 5.25 x = 2.75

b) 4.25 x + 7 = 24

c) 4.25 x ÷ 8 = 9

d) 7 + 3.25 x = 29.

To find:

For which equation would x = 4 be a solution?

Step-by-step explanation:

It is given that,

a)


28-5.25x=2.75

Put x=4,


\begin{gathered} \Rightarrow28-5.25(4)=2.75 \\ \Rightarrow28-21=2.75 \\ \Rightarrow7=2.75,\text{ which is a contradiction.} \end{gathered}

Hence 4 is not a solution of a) 28 – 5.25 x = 2.75.

b)


4.25x+7=24

Put x=4,


\begin{gathered} \Rightarrow4.25(4)+7=24 \\ \Rightarrow17+7=24 \\ \Rightarrow24=24 \end{gathered}

Hence, 4 is the solution of b) 4.25 x + 7 = 24.

Thus, the answer is option b).

User Macalaca
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