Question

What is the value of x in the equation 4x+8y=40, when y =0.8

Answer 1

[ Answer ]

`\boxed{X \ = \ 8.4}`

[ Explanation ]

• Find X In Equation: 4x + 8y = 40

Y = 0.8

X = ?

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• Rewrite Equation Using 0.8

4x + (8 · 0.8) = 40

• Multiply The Numbers: 8 · 08 = 6.4

4x + 6.4 = 40

• Subtract 6.4 From Both Sides

4x + 6.4 - 6.4 = 40 - 6.4

• Simplify

4x = 33.6

• Divide Both Sides By 4

`(4x)/(4)` =
`(33.6)/(4)`

• Simplify

X = 8.4

`\boxed{[ \ Eclipsed \ ]}`

Answer 2

x = 8.4

Explanation:

4x + 8y = 40

4x + 8 (.8) = 40

4x + 6.4 = 40

4x = 33.6

x = 8.4