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4x-5y=20
x-3y=10 becomes x=3y-10
plug that into the first equation:
4(3y-10)-5y=20
12y-40-5y=20
7y=60
y=60/7
If x=3y-10, then x=3(60/7)-10
x=180/7 - 70/7
x=110/7
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∙ 11y ago
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What is 20 divided by 2 equals?
10
What is the answer for x equals 2x equals 20?
10
If you have a rectangle whose Perimeter equals 60 and the Area equals 200 what are the lengths of the four sides?
The rectangle must have sides with lengths of 20, 20, 10, and 10. 20+20+10+10 = 60 (perimeter) 20*10 = 200 (area)
What is 2 equals 20 over?
2 = 20/10
What is 20 percent of 170 equals?
10% = 1720% = 2 * 10%20% = 34
What is 20 divided by 2 equals?
10
Ten minus what equals 20 using negatives?
10 minus negative 10 equals 20: 10 - (-10) = 20 or rather 10 + 10 = 20. 10- (minus 10) = 20
What numbers equals 20 and what times what is 20?
20 = 400
How would you get 12 is you used 10 four times?
10 plus 10 equals 20 20 divide by 10 equals 2 2 plus 10 equals 12
What is the answer for x equals 2x equals 20?
10
What equals 20?
There is only one number that equals 20, and that is 20.
Does 10 pt equals 20 qt?
No. 10 qt = 20 pt .
If you have a rectangle whose Perimeter equals 60 and the Area equals 200 what are the lengths of the four sides?
The rectangle must have sides with lengths of 20, 20, 10, and 10. 20+20+10+10 = 60 (perimeter) 20*10 = 200 (area)
What is 2 equals 20 over?
2 = 20/10
What is the answer to this equation 20 equals 5 6x - 10?
5x6 = 30 -10 = 20.
What is 20 percent of 170 equals?
10% = 1720% = 2 * 10%20% = 34
Part equals 20 whole equals 200 what percent is it?
20 / 200 = 0.10 20 is 10 percent of 200.
