Buenos días amigo/a!!!
a)
x+20+x=90
2x+20=90 Entonces:
2x=70 x+20=35+20=55
x=35 x=35
b)
α=γ Entonces
3x+14=2x+48 α=116 β=64
x=34 γ=116 δ=64
c)
β=δ
6x+5=8x-37 Entonces
42=2x α=131 β=49
21=x γ=131 δ=49
d)
α+γ=180
10x+2+4x-4=180
14x-2=180 Entonces
14x=182 α=132 β=48
x=13 γ=48 δ=132
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Verified answer
Buenos días amigo/a!!!
a)
x+20+x=90
2x+20=90 Entonces:
2x=70 x+20=35+20=55
x=35 x=35
b)
α=γ Entonces
3x+14=2x+48 α=116 β=64
x=34 γ=116 δ=64
c)
β=δ
6x+5=8x-37 Entonces
42=2x α=131 β=49
21=x γ=131 δ=49
d)
α+γ=180
10x+2+4x-4=180
14x-2=180 Entonces
14x=182 α=132 β=48
x=13 γ=48 δ=132
Espero que te sirva, suerte!!!