PLEEEEEEEEEEEEASE HELP ME WITH THIS! IT IS DUE TOMORROW!!!

Mathematics

1 answer:

sveticcg [70]3 years ago

4 0

Answer: They both equal 30

Solving Steps:
1. Solve for x
40-4x=50-8x
-4x+8x=50-40
4x=10
x=2.5

2. Find <1 and <2
40-4(2.5)
40-10
=30

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blagie [28]

A.
$5x-4=-2(3x+2) \ \ \ \ \ \ \ \ \ |\hbox{expand the bracket} \\
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B.
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\boxed{x=11} \Leftarrow \hbox{the second mistake}$

Megan's solution isn't correct.
The first mistake: she subtracted 5x from the right-hand side of the equation, but added 5x to the left-hand side.
The second mistake: she divided the right-hand side of the equation by 11, but didn't divide the left-hand side.

The correct solution:
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