Question

Ayudan con estas ecuaciones porfa 0.35x= 2.45 ,0.04=0.36 ,4x+16=20,0.8x+3.4=7.2, 9x+1=1.27

Answer 1

0.35x= 2.45
2.45/.35 = 7 (x=7)
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.04= 0.36
Faltan detalles
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4x+16=20
4x= 20-16
4x= 4
x= 4/4
x=1
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.8x+3.4=7.2
.8x= 7.2-3.4
.8x= 3.8
x= 3.8 / .8
x= 4.75
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9x+1=1.27
9x= 1.27 -1
9x= .27
x= .27 / 9
x= .03