Please help look at the question in image

Mathematics

1 answer:

Shkiper50 [21]3 years ago

5 0

Answer:

In part 1, the value for D is given. Putting D as 1 gives us the answer 17/20

In part 2, the value of E is given as 1, putting E as 1 gives us D = 20/17

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Serhud [2]

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Further explanation:

In order to solve an equation in one varible we have to isolate the variable on one side of the equations

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$-1.2x=2(x+2.15)\\Simplifying\\-1.2x=2x+4.3\\Subtracting\ 2x\ from\ both\ sides\\-1.2x-2x=2x+4.3-2x\\-3.2x=4.3\\Dividing\ both\ sides\ by\ -3.2\\\frac{-3.2x}{-3.2}=\frac{4.3}{-3.2}\\x=-1.34375\\Rounding\ off\ to\ nearest\ 100th\\x=-1.34$

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Keywords: Linear equation in one variable, Solution of equation

Learn more about Linear equations at:

#LearnwithBrainly

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