0
(i) <- first part
8y+7-7y = 6+4
8y-7y = 6+4-7
y = 3
(ii) <- second part, put the value of 'y' that you found where y is in the question.
8(3) + 7 - 7(3) = 6+4
24 + 7 - 21 = 10
31-21 = 10
10 = 10
both sides equal the same thing therefore this equation is proved.
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∙ 13y ago
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What is the answer to this math question 8y-9 equals 5y plus 3?
y=4
Whats the factor from of 2xy-4x plus 8y-16?
2xy - 4x plus 8y - 16 equals x plus 4 in parentheses multiplied by 2y minus 4 in parentheses. So, the factors are ( x + 4) and ( 2y - 4) .
If x equals 4 and y equals 1 then 7x plus 8y equals?
36..thats very simple..lol
10x - 8y equals -2 9x plus 8y equals 59?
Do a bit of rearrangement: 1: 10x + 2 = 8y; 2: 8y = 59 - 9x so 10x + 2 = 59 - 9x so 19x - 57 making x = 3 and y is therefore 4.
What is y equal to if -8y plus 9 equals 18y-4?
-8y+9=18y-4Add 8y to both sides.9=26y-4Add 4 to both sides.13=26yDivide 13 by 26.1/2=y or 0.5=y
What is the standard form of 8y plus 4 equals -3x?
The standard form is 3x - 8y - 4 = 0
What is this 8y plus 4 equals -3x in standard form?
The standard form is 3x + 8y + 4 = 0
What is Y2 plus 8y plus 16 equals 0?
y2 +8y + 16 = 0 can factor to (y+4) (y+4) = 0 so y+4 = 0 so y = -4
What is the answer to this math question 8y-9 equals 5y plus 3?
y=4
If x equals 2 and y equals 8 then 4x plus 8y equals?
x = 2, y = 84x + 8y= 4(2) + 8(8)= 8 + 64= 72
Whats the factor from of 2xy-4x plus 8y-16?
2xy - 4x plus 8y - 16 equals x plus 4 in parentheses multiplied by 2y minus 4 in parentheses. So, the factors are ( x + 4) and ( 2y - 4) .
If x equals 4 and y equals 1 then 7x plus 8y equals?
36..thats very simple..lol
10x - 8y equals -2 9x plus 8y equals 59?
Do a bit of rearrangement: 1: 10x + 2 = 8y; 2: 8y = 59 - 9x so 10x + 2 = 59 - 9x so 19x - 57 making x = 3 and y is therefore 4.
What is y equal to if -8y plus 9 equals 18y-4?
-8y+9=18y-4Add 8y to both sides.9=26y-4Add 4 to both sides.13=26yDivide 13 by 26.1/2=y or 0.5=y
What is the Soution using the substitution method of x -5y equals -4 x plus 8y equals -4?
x - 5y = -4 x + 8y = -4 The first equation gives x = 5y - 4 SUBSTITUTE this value for x in the second equation: (5y - 4) + 8y = -4 Simplify: 13y = 0 so that y = 0 Then x = 5y - 4 gives x = -4
5y - 4 plus 3y equals 12?
5y - 4 + 3y = 12 Combine like terms: 8y - 4 = 12 Add 4 to both sides: 8y = 16 Divide both sides by 8: y = 2
Is 3x-4y plus 5 equals 0 and 6x-8y-1 equals 0 are parallel?
Yes because the slope or gradient are the same 4/3
