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Earn +20 ptsQ: 4y plus 7 3y plus 9?
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4y plus 7 less than 3y plus 9?
4y + 7 < 3y + 9 4y - 3y < 9 - 7 y < 2
4y plus 7 greater than 3y plus 9?
open circle on +2, arrow going right.
How do you do -9 plus 7y plus 4-3y equals Simplify Algebraic Expressions?
4y -5
2x - 3y equals 4 and x plus 4y equals -9?
(-1,-2)
Solve this equation using subtitution 2x-3y equals 4 and x plus 4y equals -9?
2x-3y = 4 x+4y = -9 => x = -9-4y Substitute x = -9-4y into the top equation: 2(-9-4y)-3y = 4 -18-8y-3y = 4 -8y-3y = 4+18 -11y = 22 Divide both sides by -11 to find the value of y: y = -2 Substitute the value of y into the original equations to find the value of x: Therefore: x = -1 and y = -2 Remember that the product of a minus times a minus is equal to a plus when working out the original equations,
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