elianayaa22 elianayaa22
  • 31-08-2020
  • Mathematics
contestada

what value of x makes the equation true? 3x+21=8x-4

Respuesta :

rosebudredstaar
rosebudredstaar rosebudredstaar
  • 31-08-2020

Answer:

x=5  

Step-by-step explanation:

3 times 5= 15

15+21= 36

8 times 5 = 40

40-4=36

Answer Link
ari167667 ari167667
  • 31-08-2020
3x+21=8x-4
3x-8+21=-4
3x-8x=-4-21
-5x=-4-21
-5x=-25
x=5
Answer Link

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