Question

Va rog, un pic de ajutor?
3. a) 3-4x=15​

Answer 1

Sper ca te-am ajutat!^^

Answer 2

Răspuns:

Explicație pas cu pas:

a. 3-4x≤15

-12≤4x

-3≤x

x={-3,-2,-1,0,1...}

b. 4x+4+3x+6>x+1

6x>-9

$x>-\frac{9}{6} \\\\x>-\frac{3}{2}$

x={-1,1,2,3,4...}

c. 4-2x+6>4x

10>6x

5>3x

$x<\frac{5}{3}$

x={0,1}

d. 8x+2x²-3x-2x²>x+5

4x>5

$x>\frac{5}{4}$

x={2,3,4,5...}

e. 3-4x-4-6+2x≥5+8x

-2x-7≥5+8x

-12≥10x  |:2

-6≥5x

$x\leq -\frac{6}{5}$

x={-2,-3,-4...}

f. 3-10+5x≤x+1

4x≤8

x≤2

x={2,1,0}