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Simplifying 0.7x + -0.4(7 + -4x) = -0.3(x + -8) 0.7x + (7 * -0.4 + -4x * -0.4) = -0.3(x + -8) 0.7x + (-2.8 + 1.6x) = -0.3(x + -8) Reorder the terms: -2.8 + 0.7x + 1.6x = -0.3(x + -8) Combine like terms: 0.7x + 1.6x = 2.3x -2.8 + 2.3x = -0.3(x + -8) Reorder the terms: -2.8 + 2.3x = -0.3(-8 + x) -2.8 + 2.3x = (-8 * -0.3 + x * -0.3) -2.8 + 2.3x = (2.4 + -0.3x) Solving -2.8 + 2.3x = 2.4 + -0.3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3x' to each side of the equation. -2.8 + 2.3x + 0.3x = 2.4 + -0.3x + 0.3x Combine like terms: 2.3x + 0.3x = 2.6x -2.8 + 2.6x = 2.4 + -0.3x + 0.3x Combine like terms: -0.3x + 0.3x = 0.0 -2.8 + 2.6x = 2.4 + 0.0 -2.8 + 2.6x = 2.4 Add '2.8' to each side of the equation. -2.8 + 2.8 + 2.6x = 2.4 + 2.8 Combine like terms: -2.8 + 2.8 = 0.0 0.0 + 2.6x = 2.4 + 2.8 2.6x = 2.4 + 2.8 Combine like terms: 2.4 + 2.8 = 5.2 2.6x = 5.2 Divide each side by '2.6'. x = 2 Simplifying x = 2
| f(x)=3x^4-5x^3+6x-10x | | (7x-7)(9x+3)= | | 2X+5X+40= | | 16-2x=7x+6 | | b/-3=5 | | 7c-3=4x+6 | | (x^2-8x+16)+(x^2-16x+64)=x^2 | | 8y+4(2+y)=3(y-6+10y) | | 5i+2i=1.05 | | 5(3x-5)=3(7x+5) | | (x^2-8x+16)(x^2-16x+64)=x^2 | | 320-(x/25)=0 | | 6.9x-3.9=3.0 | | 3(6z-1)-2(z+2)=13(z+1) | | [a^2/-4b^6]^2 | | 7+5(x-6)=11-5(x-5) | | (z-5)(z+9)=0 | | (5y+9)(5-y)=0 | | -60r^3+60r=0 | | -5w(w-4)(w+3)=0 | | -12q^2+96q=0 | | 9a+8a=0 | | (6-6i)*(9+I)= | | 10x+15x+5=-45+20 | | 10x+15+5=-45+20 | | y=25+0.25x | | (9-7i)*(6+i)= | | c=hq | | 3y-(y-19)=y | | -3(-5)+7y=5*-5+2y | | 4x+27.9=30 | | 34/48=34-48÷ |