Question

реши уравнения и сделай проверку:351+x=479 x-512=213. 875-x=105

Answer 1

x=479-351 x=512+213 x=875-105
x=128 x=725 x=770

Answer 2

351+x=479 128+351=
x=479-351 =479
x=128

x-512=213 725-213=
x=512+213 =512
x=725

875-x=105 105+770=
x=875-105 =875
x=770