robertss403
01.10.2019 •
Mathematics
Explain how to solve a system of three equations using the elimination method.
write all the equations in standard form cleared of decimals or fractions.
choose a variable to eliminate; then choose any two of the three equations and eliminate the chosen variable.
select a different set of two equations and eliminate the same variable as in step 2.
solve the two equations from steps 2 and 3 for the two variables they contain.
substitute the answers from step 4 into any equation involving the remaining variable.
check the solution with all three original equations.
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Ответ:
y= 1/2x
Step-by-step explanation:
To find the slope: y/x
-4 is the x and -2 is the y