Question

Gente pfv eu n consigo resolver \(>¬<)/

a) 2x+3⋅(x–5)=4x+9

b) 2 (4x + 5) - 3( 2x - 7) = 37

Answer 1

a) 2x + 3 . (x - 5) = 4x + 9

2x + 3x - 15 = 4x + 9

5x - 4x = 9 + 15

x = 24

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2 . (4x + 5) - 3 . (2x - 7) = 37

8x + 10 - 6x + 21 = 37

2x = 37 - 10 - 21

2x = 27 - 21

2x = 6

x = 6 / 2

x = 3