Question

The solution to the equation 6x -13 = 2x +3 is

a) x =4

b) x= (- 4)

c) x =3

d) x = (-3)​

Answer 1

Answer:

MATHS

If x2+6x−27>0 and x2−3x−4<0, then

A

x>3

B

x<3

C

3<x<4

D

x=7/2

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ANSWER

x2+6x−27>0x2+9x−3x−27>0x(x+9)−3(x+9)>0(x−3)(x+9)>0x∈(−∞,−9)∪(3,∞)x2−3x−4<0x2−4x+x−4<0x(x−4)+(x−4)<0(x+1)(x−4)<0x∈(−1,4)∴x∈(3,4)or,3<x<4

Answer 2

Answer:

Part (a) is correct

6x-13=2x+3

6x-2x=3+13

4x=16

x=16/4

x=4