250-3y=115 x+3x+2×3x=120 (48-x)÷8=4

Question

250-3y=115
x+3x+2×3x=120
(48-x)÷8=4

Answer 1

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Answer 2

250-115=3у
у=135:3=45
7х=120-2=118
х=118:7=16 6/7
48-х=4*8=32
х=48-32=16