Question

Sam's height is 15 centimeters less than 2 times Martha's height. If Sam is 185 centimeters tall, and Martha's height is x, the relationship between the heights can be represented by the equation 2x − 15 = 185. What is Martha's height?
a)90
b)95
c)100
d)105

Answer 1

Sólo sería despejar a "x"
2x-15=185
2x=185+15
x=200/2
x=100 cm. Altura de martha. Opción c)  -->R/.