СРОЧНО ДОПОМОЖІТЬ БУДЬ ЛАСКА
1. Розв'яжіть рiвняння:
a) 4x = 24 + x;
б) 4(x - 3) = x + 6;
в) 0,3(8 – 3у) = 3,2 – 0,8(у – 7);
г)x²-3x=0 д)х²+15х+6=0
e)x4-13x2+36=0
ж) x²-20 X 2x x²-20 =1​
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