Question

Question #5d429

Answer 1

See below

Explanation:

1) `-5.5x+0.56=1.64`
Step 1: Subtract `0.56` from both sides.

`-5.5xcancel(+0.56)cancel(-0.56)=1.64-0.56`
`-5.5x=1.08`

Step 2: Divide both sides by `-5.5`.

`(-5.5x)/-5.5=1.08/-5.5`
`(cancel(-5.5)x)/cancel(-5.5)=-0.196bar36`

Solution: `x=-0.196bar36`

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2) `-4.2+31.5=-65.1`
Did you type this question wrong?

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3) `k/5.2+81.9=47.2`
Step 1: Subtract `81.9` from both sides.

`k/5.2cancel(+81.9)cancel(-81.9)=47.2-81.9`
`k/5.2=-34.7`

Step 2: Multiply both sides by `5.2`.
`cancel5.2*k/cancel5.2=-34.7/5.2`

Solution: `k=-6.67bar307692`