jjennifernwaka jjennifernwaka
  • 23-09-2020
  • Mathematics
contestada

7a+3=4a-18 what is the a

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 23-09-2020

Answer:

a = -7

Step-by-step explanation:

7a+3=4a-18

Subtract 4a from each side

7a-4a+3=4a-4a-18

3a +3 = -18

Subtract 3 from each side

3a +3-3 = -18-3

3a= -21

Divide each side by 3

3a/3 = -21/3

a = -7

Answer Link

Otras preguntas

Convert 30g 519mg to g
Which sentence is punctuated correctly? A) Our best soccer player got injured in the last game, however; we still won the championship. B) The teacher explaine
(5a^2-a-4) /a-2How is this done? ​
Help solving this math homework
A biker’s speed is 1.5 times faster than a walker’s speed. They start moving simultaneously in the same direction from the same point and, after 1.5 hours, the
a) 23.7 x 3.8 What is
An 11,000-watt radio station transmits at 880 kHz. Calculate the energy of a single photon at the transmitted frequency. _____ J/photon 5.8 x 10-28 5.8 x 1
Important things of Medieval kingdoms in Europe feudalism
what kind of microorganism is this
una picina tiene 2,5 millones de litros, y se evaporó 2 millores. ¿que porsentaje de agua que se evaporó? ​