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Verified answer
Mapel : MatematikaBab : SPLDV
A + B = 120
A - B = 50
----------------- -
2B = 70
B = 70/2
B = 35
A + B = 120
A + 35 = 120
A = 120 - 35
A = 85
Verified answer
Matematika (SPLDV)A + B = 120
A = 120 - B
A - B = 50
120 - B - B = 50
-2B = 50 - 120
B = -70 ÷ -2
B = 35
A = 120 - B
A = 120 - 35
A = 85