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a) y=2x+7 |-7
y-7=2x |/2
x=(y-7)/2
b) y=1-2(x-3)
y=1-2x+6
y=7-2x |-7
y-7=-2x |/(-2)
(-y+7)2=x
c) c=(t+1)/ax |*ax
cax=t+1 | /ca
x=(t+1)/ca
d) t=-(3x/a)
t=-3x/-a |*(-a)
-ta=-3x | /(-3)
ta/3=x
e) p=(2-x)/(p+1) |*p+1
p2+p=2-x | -2
p2+p-2=-x
-p2-p+2=x
f)b=(2x+c)/(c+7) |*c+7
bc+7b=2x+c |-c
bc+7b-c=2x |/2
(bc+7b-c)/2=x
g) m=n/(x+1) |*x+1
mx+1=n |/m
x+1=n/m |-1
x=n/m-1
h) k=(a-2x)/b |*b
kb=a-2x |-a
kb-a=-2x | /(-2)
kb-a/-2=x
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a) y=2x+7 |-7
y-7=2x |/2
x=(y-7)/2
b) y=1-2(x-3)
y=1-2x+6
y=7-2x |-7
y-7=-2x |/(-2)
(-y+7)2=x
c) c=(t+1)/ax |*ax
cax=t+1 | /ca
x=(t+1)/ca
d) t=-(3x/a)
t=-3x/-a |*(-a)
-ta=-3x | /(-3)
ta/3=x
e) p=(2-x)/(p+1) |*p+1
p2+p=2-x | -2
p2+p-2=-x
-p2-p+2=x
f)b=(2x+c)/(c+7) |*c+7
bc+7b=2x+c |-c
bc+7b-c=2x |/2
(bc+7b-c)/2=x
g) m=n/(x+1) |*x+1
mx+1=n |/m
x+1=n/m |-1
x=n/m-1
h) k=(a-2x)/b |*b
kb=a-2x |-a
kb-a=-2x | /(-2)
kb-a/-2=x