bianca1324
bianca1324 bianca1324
  • 02-11-2016
  • Mathematics
contestada

3(x+7)-12=4(2x-7)

How do you do this?!?!

Respuesta :

MohamedSharif
MohamedSharif MohamedSharif
  • 13-11-2016
3x+21-12=8x-28
collect the like terms
3x-8x=-28(21-12=9)
-5x=-28-9
-5x=-37
x=7.4
Answer Link

Otras preguntas

What was the earliest know civilization (A) Sumer (B) Mesopotamia (C) Egypt (D) Civitas
Linear Algebra Problem: Determine if the given statements are True or False. Justify your answers (i.e., give a proof for true and a counterexample for false).
: Casey has a total of 18 pens. Twelve of these pens are blue, and the rest are red. ​What is the ratio of blue pens to red pens?
Ella cante bien. correct incorrect
There are 125 calories in a candy bar. There are 12 candy bars in a box. How many calories are in each box of candy bars?
How can a Word user insert a page break into a document to isolate a table on a new page?
Express 0.4 uM to mmol/mL
What is 1.5 x 10 to the 8th power in standard form
A mis-hit golf ball flies straight up in the air. Exactly 4.0 seconds later it lands right next to the tee. How high up did the golf ball go?
2. Solve the system of equations. Write your answer in parametric vector notation. X, +5x2 + 4x3 + 3x4 +9xs = 18 2x, +6x2 + 4x3 + 6x4 +6x3 = 28 3x, + 7x2 + 4xz