Rozwiąż równania a)9+5x=18 b)10-2x=8 c)x+6=8X d)x+(-4)=30

a) 9 + 5x = 18 5x = 9 x = 9/5 b) 10 - 2x = 8 2x = 2 x = 1 c) x + 6 = 8x 7x = 6 x = 6/7 d) x - 4 = 30 x = 34

a) 9 + 5x = 18 5x = 18 - 6 5x = 9 /:5 x = ⁹/₅ = 1⅘ b) 10 - 2x = 8 -2x = 8 - 10 -2x = -2 /:(-2) x = 1 c) x + 6 = 8x x - 8x = - 6 -7x = -6 /:(-7) x = ⁶/₇ d) x + (-4) = 30 x = 30 + 4 x = 34

a) 9+5x=18 5x = 18 -9 5x = 9/5 x = 1,8 b) 10-2x=8 -2x = 8 - 10 -2x = -2/-2 x = 1 c) x+6=8X 6 = 8x - x 6 = 7x /7 x = 6/7 d) x + (-4) = 30 x = 30 + 4 x = 34