10)
а)8d+6d=14d
б)10х-х=9х
в)8а * 25 = 200а
г)12с-2k+c-8k=13c-10k
д)9p-(5+2p)=9p-5-2p=7p-5
е)-4(y+8)+3(y-5)=-4y-32+3y-15=-47-y
11)
а)y-16=46
y=62
б)9х=3
х=1/3
в)24/y=3/8
y=192/3
y=64
д)|x|=8
x=8;-8
е)1/12x + 1(1/3)=3/4
1/12x + 4/3 = 3/4
1/12x = 3/4 - 4/3
х = -7
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Answers & Comments
10)
а)8d+6d=14d
б)10х-х=9х
в)8а * 25 = 200а
г)12с-2k+c-8k=13c-10k
д)9p-(5+2p)=9p-5-2p=7p-5
е)-4(y+8)+3(y-5)=-4y-32+3y-15=-47-y
11)
а)y-16=46
y=62
б)9х=3
х=1/3
в)24/y=3/8
y=192/3
y=64
д)|x|=8
x=8;-8
е)1/12x + 1(1/3)=3/4
1/12x + 4/3 = 3/4
1/12x = 3/4 - 4/3
х = -7