Question

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3x+10=x-3 
4(-2x+1)=3(x+5)
2(2x-4)=5 (x/2 +4)
x/6-3(x-4)/5=-2x+1
4(2x-5)=3-(-2x+1)
2/3(x-3)+15

Answer 1

a) 3x+10=x-3 

3x-x=-3-10
2x=-13
x=-13/2

b) 4(-2x+1)=3(x+5)

-8x+4=3x+15
-8x-3x=15-4
-11x=11
x=-1

c) 2(2x-4)=5 (x/2 +4)

4x-8=5x/2+20
8x-16=5x+40
8x-5x=40+16
3x=56
x=56/3

d) x/6-3(x-4)/5=-2x+1

$\frac{x}{6}-\frac{3(x-4)}{5}=-2x+1\\ 5x-18(x-4)=-60x+30\\ 5x-18x+72=-60x+30\\ 5x-18x+60x=30+72\\ 46x=102\\ x=\frac{102}{46}=\frac{51}{23}$

e) 4(2x-5)=3-(-2x+1)

8x-20=3+2x-1
8x-2x=-1+20
6x=19
x=19/6

2/3(x-3)+15  ?????

Answer 2

Resposta:

a) 3x+10=x-3

b) 4(-2x+1)=3(x+5)

c) 2(2x-4)=5 (x/2 +4)

d) x/6-3(x-4)/5=-2x+1

e) 4(2x-5)=3-(-2x+1)

a ultima eu não entendi

Explicação passo-a-passo: