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Simplifying (2x2 + 3x + -2) + -1(2x2 + 3) = 19 Reorder the terms: (-2 + 3x + 2x2) + -1(2x2 + 3) = 19 Remove parenthesis around (-2 + 3x + 2x2) -2 + 3x + 2x2 + -1(2x2 + 3) = 19 Reorder the terms: -2 + 3x + 2x2 + -1(3 + 2x2) = 19 -2 + 3x + 2x2 + (3 * -1 + 2x2 * -1) = 19 -2 + 3x + 2x2 + (-3 + -2x2) = 19 Reorder the terms: -2 + -3 + 3x + 2x2 + -2x2 = 19 Combine like terms: -2 + -3 = -5 -5 + 3x + 2x2 + -2x2 = 19 Combine like terms: 2x2 + -2x2 = 0 -5 + 3x + 0 = 19 -5 + 3x = 19 Solving -5 + 3x = 19 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 3x = 19 + 5 Combine like terms: -5 + 5 = 0 0 + 3x = 19 + 5 3x = 19 + 5 Combine like terms: 19 + 5 = 24 3x = 24 Divide each side by '3'. x = 8 Simplifying x = 8
| 8x=7x+2 | | x^2-5x+9=0 | | a^2+20a=-2 | | y^2+3y+1=0 | | 2(5-6x)-3X= | | (4u-5v)-(u+v)= | | -(6y+2)-(5y-5)=-3 | | 2(x-4)=-(3-5x) | | 1x^2-6x-7=0 | | 6x-4x-x=9 | | 5(9-5x)=8x | | 2(6x+7)-5(x+3)= | | 7x-2x+7=-13 | | 1x^2-7x-8=0 | | 3x+4y=100 | | 116-5x=31x+16 | | 6(9x-7)-5x= | | 15=30a | | 1x^2-6x+5=0 | | 6(3x+7)= | | 36=9+8x+x | | -32x^2+64x-14=0 | | -5+7+2k-3k=k-9 | | a^2-a-90=0 | | 5(x-3)=4-(2x+7) | | -24x^2+31x-10=0 | | 35=9+8x+x | | 97-2x=5x+20 | | -16t^2+60t+3=0 | | h=2fg | | 3x-2=21x+23 | | 5x^2-89x-900=0 |