Write an equation for each of the following and then solve it to find the value of the pronumeral. a When 7 is added to twice a certain

Question

Write an equation for each of the following and then solve it to find the value of the pronumeral.
a When 7 is added to twice a certain number, the result is 15. Find the number.
b The sum of 3 consecutive numbers is 51. Find the largest number.
c Two girls have $27 between them. One has twice as much as the other. How much
does each girl have?
d The length of a rectangle is 3 times the width of the rectangle, and the perimeter is
64 cm. Find the width of the rectangle.
e In a triangle the angles are (x + 9)°, 3.xº and (2x + 3)’. Find the smallest angle.​

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Mộc Miên 5 years 2021-07-22T17:01:45+00:00 1 Answers 13 views 0

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  1. thachthao
    0
    2021-07-22T17:03:00+00:00
    Reply

    c= 27* sinpl jajwkwoq

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )