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3 years ago

14

Solve for x algebraically: 40=7.25x-8.60and22=3.83x+-4.76

1 answer:

vladimir1956 [14]3 years ago

4 0

You want to isolate x.
First, lets move 8.60 to th other side:
40 + 8.60 = 7.25x => 48.60 = 7.25x
Now, divide left and right by 7.25
48.60/7.25 = 7.25x/7.25 => x ≈ 6.7 (rounded)
Tip: throw the equation in wolfram alpha.
I'm sure you can work out the other one.

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