7x-10y=4;12x+18y=1 elimination method
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7x - 10y = 4
12x + 18y = 1
84x - 120y = 48
84x - 126y = 7
6y = 41
y = 41/6
x = -122/12 = -61/2
hope it helped you
12x + 18y = 1
84x - 120y = 48
84x - 126y = 7
6y = 41
y = 41/6
x = -122/12 = -61/2
hope it helped you
Answered by
0
we have to take lcm of 7 and 12 to make the equation equivalent thus:
84X-120y=48,84X+126y=7 by subtracting it we can get the answer:
84X-120y=48
- -84X-126y=-7
=-246y=41
=y=41/246
84X-120y=48,84X+126y=7 by subtracting it we can get the answer:
84X-120y=48
- -84X-126y=-7
=-246y=41
=y=41/246
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