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Simplifying 3 + 4(x + -1) = 7x + 7(x + 4) Reorder the terms: 3 + 4(-1 + x) = 7x + 7(x + 4) 3 + (-1 * 4 + x * 4) = 7x + 7(x + 4) 3 + (-4 + 4x) = 7x + 7(x + 4) Combine like terms: 3 + -4 = -1 -1 + 4x = 7x + 7(x + 4) Reorder the terms: -1 + 4x = 7x + 7(4 + x) -1 + 4x = 7x + (4 * 7 + x * 7) -1 + 4x = 7x + (28 + 7x) Reorder the terms: -1 + 4x = 28 + 7x + 7x Combine like terms: 7x + 7x = 14x -1 + 4x = 28 + 14x Solving -1 + 4x = 28 + 14x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14x' to each side of the equation. -1 + 4x + -14x = 28 + 14x + -14x Combine like terms: 4x + -14x = -10x -1 + -10x = 28 + 14x + -14x Combine like terms: 14x + -14x = 0 -1 + -10x = 28 + 0 -1 + -10x = 28 Add '1' to each side of the equation. -1 + 1 + -10x = 28 + 1 Combine like terms: -1 + 1 = 0 0 + -10x = 28 + 1 -10x = 28 + 1 Combine like terms: 28 + 1 = 29 -10x = 29 Divide each side by '-10'. x = -2.9 Simplifying x = -2.9
| k^2-4k-21= | | (x+1)(x+1)(2x+1)(2x+1)(2x+1)(2x+1)(-6x-3)=0 | | 7.2f+5(f-8.1)=-0.06f+15.18 | | 3r^2+48=24r | | w^2+17w+72=0 | | 105=x+2x+2x | | x*x+16*x=105 | | 5(r+6)=10(r-2) | | 10x+3g-3x+6g= | | 4x^4-19x^3-5x^2=0 | | 4x^2-19x^3-5x^2=0 | | 25d-26d^3+d^5= | | 6=-(2+c)-(4+2c) | | 105=3x+2x+x | | 1.6y=40 | | 216c^3+125j^3=0 | | 16t^2-60t+76=0 | | 6*4b= | | 2w+6=2 | | 12y^3+7y^2-12y=0 | | 5a+17-4a-9= | | 3h+(2-h)=20 | | 36-x^2=5x | | 15y^2+14y+3=0 | | w^2+5w=24 | | (x-1)=29 | | 2v^2+128=32v | | (x-9)=17 | | a^4-5a^2+4= | | 4(2n-1)+5=2(4n+2) | | 22=24-b | | 10.8a-12.3=-23.4-16.9 |