Question #98353

1 Answer
Mar 27, 2017

See explanation

Explanation:

Note that 4xx6=244×6=24

4xxEquation(1) ->24x-20y=-144×Equation(1)24x20y=14
6xxEquation(2)->ul(24x+12y=color(white)(..)168) larr" subtract"
" "0x-32y= -182

-32y=-182

Multiply both sides by (-1)

32y=182

Divide both sides by 32

32/32 y=182/32

but 32/32=1

y=91/16

Where you can, always use fraction. They are more precise than decimals. Using decimals introduces rounding errors.

Just substitute for y in Equation(1) or 2 to determine x