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Phổ biến Word Problems >

Six times a number plus twice a second number is four. Twice the first number plus four times the second number is eighteen.

Lời Giải

S i x t im es a n u mb er pl u s tw i ce a seco n d n u mb er i s f o u r . Tw i ce t h e f i rs t n u mb er pl u s f o u r t im es t h e seco n d n u mb er i s e i g h t ee n .

Lời Giải

The numbers : - 1, 5

Các bước giải pháp

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

6 x + 2 y = 4

2 x + 4 y = 18

6 x + 2 y = 4, 2 x + 4 y = 18 : x = - 1, y = 5

The numbers : - 1, 5

Ví dụ phổ biến

six, plus four times a number, is eighteen the sum of two number is 22. Five times one number is equal to six times the second one. What are the numbers?You deposit 28 in an account earning 6% interest compounded monthly. How much will you have in the account in 160 years?An amount of 34,000 is borrowed for 10 years at 5.5% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?The radius of a circle is 4 miles. What is the chu vi?Give the exact answer in simplest form.