emhdg4qnip emhdg4qnip
  • 27-01-2021
  • Mathematics
contestada

Solve the x.
1. 11x + 9 = 40 - 47
2. 2x – 8 - 6x = 90
3. 5 (3x – 4) = x+6+ 12x

Respuesta :

Lunar3lipse
Lunar3lipse Lunar3lipse
  • 27-01-2021
1. 11x+9=-7
-9 -9
11x=-16
/11 /11
x= -16/11

2. 2x-8-6x=90
2x-6x=-4x
-4x-8=90
+8 +8
-4x=98
/-4 /-4
x=-24.5


3. 5(3x-4)=x+6+12x
15x-20=13x+6
-13x. -13x
2x-20=6
+20. +20
2x=26
/2. /2
x=13
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