briannawhitaker16 briannawhitaker16

15-10-2019
Mathematics

contestada

Solve for b by elimination 2a+3b=12
5a-b=13

Respuesta :

aminahk28 aminahk28

15-10-2019

Answer: 2a+3b=12

b=(12-2a)/3

5a-b=13

b= -13+5a

Step-by-step explanation:

1) 2a+3b=12

-2a -2a

3b=12-2a

/3 /3

b= (12-2a)/3

2) 5a-b=13

-5a -5a

-b=13-5a

*-1 *-1 -b= 13(-1)-5a(-1) *you'd multiply by -1 to cancel out the negative on b*

b= -13+5a

Answer Link

Otras preguntas

Find two supplementary angels such that the measure of the first angle is 38° less than three times the measure of the second

Substiution method: y + 9 = 1/5x and 45 - 3y = -15x Please show work thank you very much.

The nine different classes of vertebrates include a. four ﬁsh classes and amphibians, reptiles, birds, whales and mammals. b. four ﬁsh classes and amphibians, r

What direction does a equatorial current flow? does it change directions?

Plants often enter dormancy a. when rainfall is abundant. b. just before they form ﬂowers. c. during winter. d. in the spring

Substiution method: y + 9 = 1/5x and 45 - 3y = -15x Please show work thank you very much.

Determine if the following tables from a lineAr equation if so identify the slope otherwise write non linear

explain the different ways plants, fungi, and animals obtain nutrients

What type of rock does preexisting rock become

dan painted 3/4 of a wall using 1/4 of a can of paint. how many walls can he paint using one can of paint?