cbless4989 cbless4989

21-10-2019
Mathematics

contestada

If 3x+2yy=6 and x+y=4, then
a. 2x+y= ?
b. 4x+3y= ?

Respuesta :

ExieFansler ExieFansler

22-10-2019

Answer:

a.2

b.10

Step-by-step explanation:

3x+2y=6............(i)

x+y=4..........(ii)

mutiplying eq(ii) by 2 and subtracting from eq(i)

3x+2y-2x-2y=6-8

x=-2

putting the value of x in eq(ii)

-2+y=4

y=6.

a.

2(-2)+6

=-4+6

=2

b.

4(-2)+3(6)

-8+18

=10

Answer Link

Otras preguntas

Which of the following words suggests a point of view? a. Face b. World c. Society d. Objective

..... the atomic theory has been revised over time .. J.J Thompson described the atom as having a mix of positive and negative charges randomly scattered throug

Rounding numbers to estimate the sum 256+321

Which list represents the sequence of social positions in the feudal hierarchy (starting from the uppermost tier)? A.knight, lord, clergy, serf B.king, lord, cl

In the problem 10-4=6 what is the correct term of the number 4 a. Product b. Minuend c. Subtrahend d. Difference

what derived unit is usually used to express the density of liquids

What gives an object gravity?

The difference between the product of six and a number and negative two time the number

What is a group of ravens called?

Find the greatest common factor of 9,15, and 63