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KATRIN_1 [288]
2 years ago
9

Solve the equations using the substitution method: 4x -2y =22 2x + 4y = 6

Mathematics
1 answer:
Ugo [173]2 years ago
4 0
We have that
<span>4x -2y =22------> clear variable y
2y=4x-22--------> y=4x/2-22/2---------> y=2x-11-----> equation 1
2x + 4y = 6------> equation 2

substitute equation 1 in equation 2
2x+4*[2x-11]=6-----> 2x+8x-44=6----> 10x=50------> x=5
then 
y=2x-11----> y=2*5-11----> y=-1


</span>
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