dokea24 dokea24
  • 12-09-2020
  • Mathematics
contestada

-3x + 7= 28
what does x equal

Respuesta :

jotarokujo36
jotarokujo36 jotarokujo36
  • 12-09-2020
-3x+7=28
1st step move the seven to the other side of the equal sign and change it from positive to negative like this
-3x=21
Step 2 divide 21 by -3 and the answer will be -7
Answer Link
shownubear1992
shownubear1992 shownubear1992
  • 12-09-2020

Answer:

x = -7

Step-by-step explanation:

[tex]-3x+7=8[/tex] subtract 7 on both sides

[tex]-3x=21[/tex] divide -3 into both sides

[tex]x=-7[/tex]

To check

-3(-7) = 21 + 7=28

Answer Link

Otras preguntas

What best explains the diversity of the Middle Colonies? The extreme geographical regions The varied immigrant homelands The wide range of economical pursuit
Patients taking the drug heparin will have a higher-than-normal value for ________ on their blood test.
A ______________ is an ordered set of numbers or objects in which the order helps you predict what comes next
48 is 40% of what number? explain how
What number must you add to the polynomial below to complete the square?x2 - 19x?
HUGE POINT REWARD 35 POINTS! Is this answer below correct? Please explain why. Thank you!
Which ethical system is concerned with needs and relationships?
Please help on number 13
using the Zero property solve -16tsquared + 28t + 8 = 0
Why did president Johnson deviate from his original plan of punishing Southern aristocrats by making it difficult for states to rennter the union