The expression "-2y + 7y + 4" can be simplified by combining the like terms. The terms involving (y) are (-2y) and (7y), which combine to give (5y). Therefore, the simplified expression is (5y + 4).
2y+3y-7y+4=16 -2y=12y=-6Check it-12-18+42+4=16-30+46=1616=16
5y explanaition 5x-5x=0, 0-2y=-2y, -2y+7y=5y
To simplify the expression (7y + 2y - 5y), you combine the like terms. Adding the coefficients gives (7 + 2 - 5 = 4), so the simplified expression is (4y).
7y + 4 = 5y - 6Subtract 4 from each side:7y = 5y - 10Subtract 5y from each side:2y = -10Divide each side by 2:y = -5
(-4, -1)
7y + 2y = 9y 7y * 2y = 14y^2
2y+3y-7y+4=16 -2y=12y=-6Check it-12-18+42+4=16-30+46=1616=16
5y explanaition 5x-5x=0, 0-2y=-2y, -2y+7y=5y
5y+8=7y 2y=8 y=4
13x10yx7+2y 13
To simplify the expression (7y + 2y - 5y), you combine the like terms. Adding the coefficients gives (7 + 2 - 5 = 4), so the simplified expression is (4y).
7y - 6 = 5y - 147y - 5y = 6 - 142y = -8y = -8 ÷ 2y = -4
10y = 9y + 4, so y = 4
-3
x+7y=39
7y + 4 = 5y - 6Subtract 4 from each side:7y = 5y - 10Subtract 5y from each side:2y = -10Divide each side by 2:y = -5
(-4, -1)