a-(47+33)=310+210
a – 47 – 33 = 310 + 210
a = 210 + 310 + 33 + 47
a = 600
y+230=9×4+640
y+230=36+640
y-446 = 0
y = 446
(230+640)-x=410+120
230 + 640 – x = 410 + 120
– x = 120 + 410 – 640 – 230
-x = -340
x = 340
a-(47+33)=310+210
a – 47 – 33 = 310 + 210
a = 210 + 310 + 33 + 47
a = 600
y+230=9×4+640
y+230=36+640
y-446 = 0
y = 446
(230+640)-x=410+120
230 + 640 – x = 410 + 120
– x = 120 + 410 – 640 – 230
-x = -340
x = 340