Question

resolva as equaçoes. b)(3x+5).2=4 c)-4y+8= -3y d)4y-5-1,5y=(0,9-y)

Answer 1

 b)(3x+5).2=4 ==> 6x + 10 = 4 ==> 6x = 4 -10 ==> 6x = - 6 ==> x = - 1
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c)-4y+8= -3y ==> 4y - 3y = 8 ==> y = 8

d)4y-5-1,5y= 0,9-y ==> 2,5y+y = 0,9+5 ==>
 
3,5y= 5,9 ==> y = 5,9 ==> y = 59 
                             3,5               35