Respuesta :
Answer:
3x+4=13
3x+4= -5
3x+4=22
3x+4= -8
3x+4=31
Step-by-step explanation:
Step-by-step explanation:
Easiest
Arrange the arithmetic expression. Calculate its value. Exchange one number to "x".
2 + 12 - 6(2) = 14 - 12 = 2
x + 12 - 6x = 2 (x = 2)
3(5 + 2) + 2(5) = 3(7) + 10 = 21 + 10 = 31
3(x + 2) + 2x = 31 (x = 5)
(11 + 4) : 3 - 2(4) = 15 : 3 - 8 = 5 - 8 = -3
(11 + x) : 3 - 2x = -3 (x = 4)
4(0) + 3(7 + 0) - 5 = 0 + 3(7) - 5 = 21 - 5 = 16
4x + 3(7 + x) - 5 = 16 (x = 0)
2(1) - 3(1 + 4) + 8 = 2 - 3(5) + 8 = 2 - 15 + 8 = -5
2x - 3(x + 4) + 8 = -5 (x = 1)