7 Află numerele necunoscute. a) x 8 = 25 b) y : 7 = 87 c) z + 293 = 500 d) m - 467 = 523

x:8=25..... x=25×8.... x=200
y:7=87..... y=87×7.... y=609
z+293=500 ..... z=500-293 ...... z=207
m-467=523..... m=523+467.... m=990