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a fost răspuns

calculează
a) 2 (x+3)+27=59
b) 7 (x-2)+9=44
c) 8(x+3)+7= 71
d) 3x-8=x+=48
e) 4x+4=x+68
g) 25-3x=17-x
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Răspuns :

a.2x+6+27=59,2x=59-27-6,2x=26,x=26:2,x=13
b.7x-14+9=44,7x=44-9+14,7x=49,x=49:7=7
c.8x+24+7=71,8x=71-7-24,8x=80,x=40:8=5
d.3x-x=48+8
2x=56,x=56:2=28
e.4x-x=68-4,3x=64,x=64:321 rest1
g.25-17=3x-x,8=2x,x=8:2=4