pb9i66eyau
pb9i66eyau pb9i66eyau
  • 07-10-2020
  • Mathematics
contestada

2. Explain and correct the error made by a student who simplified this expression.
–2x + 7x + 8
(–2 + 7 + 8)x
13x

Respuesta :

cam2732 cam2732
  • 07-10-2020
there is no x in 8 so it should’ve been
-2x + 7x + 8 = x(-2+7) + 8
Answer Link

Otras preguntas

Can you please help me with this Spanish Worksheet. (It’s due tomorrow)
Which state of matter is made up of particles that separate due to extremely high temperatures? A. gas B. solid C. liquid D. plasma
A basketball team won 15 games during the 2016 -2017 season. In the 2017 -2018 season, the team won 21 games. What was the percent of increase in the games?
The hour hand of a clock moves from 12 to 5 o’clock. How many degrees does it move?
how do i solve 7.4+n=5.3​
how to solve these problems ?
How is the function f(x) related to the function g(x)
Needing help explaining these!!! (2 pics attached)
A student calculates the mass of a piece of copper to be 8.3 grams. The actual mass of the copper is 10. grams. What is the percent error? Show your work below.
Can someone please help? (Year 9 Math) This question is on fractions. Please see picture attached (ex. 2a and b) please show method of working.