dannyboy1972 dannyboy1972

01-12-2016
Mathematics

contestada

a+b=2x-2 and a-b=4x-8 find a and b

Respuesta :

charstar charstar

01-12-2016

a+b=2x-2
a-b=4x-8
a=6x-10
a=4x-8+b
6x-10=4x-8+b
2x-10=b-8
2x+2=b
2x-2=b-4
a+b=b-4
a=-4
-4=6x-10
6=6x
x=1
2-2=b-4
0=b-4
4=b

a=-4
b=4

Hope this helps :)

Answer Link

Otras preguntas

10u + 7 = 8 ( 2u - 4 ) - 9

how have computers changed mapmaking in recent years

A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?

What's breed of given cat???Check attachment

what type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)

What were the 4 major truths Jefferson presented in the declaration of independence?

two methods of active transport

how have computers changed mapmaking in recent years

10u + 7 = 8 ( 2u - 4 ) - 9

2 ( 4a - 12 ) + 3a = 6a + 1