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Find two numbers whose sum is -7 and whose difference is 37?
x + y = -7 x - y = 37x = -7-y-7-y-y = 37-7-2y = 37-2y = 44y = -22x - 22 = -7x = 15So -22 and 15
Find two numbers such that the sum of seven times the smaller and twice the larger is 155 and the difference between eight times the smaller and the larger is 3?
Let the smallest number be x, and the larger number be y. So we have:7x + 2y = 1558x - y = 37x + 2y) = 1552(8x - y) = 2(3)7x + 2y = 15516x - 2y = 6(7x + 2y) + (16x - 2y) = 155 + 67x + 16x + 2y - 2y = 155 + 623x = 16123x/23 = 161/23x = 78x - y = 38(7) - y = 356 - y = 356 - 3 - y + y = 3 - 3 + y53 = yThus, the number are 7 and 53.Check:
What is four hundred minus what number equals to 37?
400 - x = 37x - 400 = -37x = -37 + 400 = 363
How is 3x-5 equals 40-3x plus 3?
3x-5=40x+3 Subtract 3x-5 from each side 0=37x+8 -8=37x x= -8/37
Does 3-2y equal -2y plus 3?
Yes. It is like having a-b, which is a+(-b), which is -b+a, so 3-2y = 3+(-2y) = -2y+3
-3 7x plus 2y?
-37x + 2y you can't add unlike term according to this problem. so it would just be -37x + 2y
Find two numbers whose sum is -7 and whose difference is 37?
x + y = -7 x - y = 37x = -7-y-7-y-y = 37-7-2y = 37-2y = 44y = -22x - 22 = -7x = 15So -22 and 15
Find two numbers such that the sum of seven times the smaller and twice the larger is 155 and the difference between eight times the smaller and the larger is 3?
Let the smallest number be x, and the larger number be y. So we have:7x + 2y = 1558x - y = 37x + 2y) = 1552(8x - y) = 2(3)7x + 2y = 15516x - 2y = 6(7x + 2y) + (16x - 2y) = 155 + 67x + 16x + 2y - 2y = 155 + 623x = 16123x/23 = 161/23x = 78x - y = 38(7) - y = 356 - y = 356 - 3 - y + y = 3 - 3 + y53 = yThus, the number are 7 and 53.Check:
What is four hundred minus what number equals to 37?
400 - x = 37x - 400 = -37x = -37 + 400 = 363
How is 3x-5 equals 40-3x plus 3?
3x-5=40x+3 Subtract 3x-5 from each side 0=37x+8 -8=37x x= -8/37
What is 4x-2y plus 3x plus 2y?
4x-2y+3x+2y When simplified: 7x
What is 2y squared times y cubed?
2y squared * y cubed= 2y^5 (2y to the fifth power)
2y plus y-2y?
-2y+y = -y
What is y times 2?
2y.2y
What are the factors of 3x-2y and 3x 2y?
3x - 2y and 3x + 2y are in their simplest form. They don't factor.
What is the slop-intercept of -6x equals 2y-120?
-6x = 2y - 120 -2y -2y -2y - 6x = -120 +6x +6x -2y = 6x - 120 -2y/-2 = 6x/-2 - 120/-2 y = -3x + 60
Does 3-2y equal -2y plus 3?
Yes. It is like having a-b, which is a+(-b), which is -b+a, so 3-2y = 3+(-2y) = -2y+3
