Malloy solved the equation −5x − 16 = 8; his work is shown below. identify the error and where it was made.

−5x − 16 = 8
step 1: −5x − 16 + 16 = 8 + 16
step 2: −5x = 24
step 3: negative five times x over five = twenty-four over five
step 4: x = twenty-four over five

-5x-16=8

-5x=24

above is how to correctly solve the equation

The error is in step 3.

Step 3 as written:

This is incorrect because you are removing the 5 from the -5x so it wouldn't be in the numerator.

Hope this helps

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =