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Simplifying 0.4(2x + 7) + 12 = 0.7(2x + -4) Reorder the terms: 0.4(7 + 2x) + 12 = 0.7(2x + -4) (7 * 0.4 + 2x * 0.4) + 12 = 0.7(2x + -4) (2.8 + 0.8x) + 12 = 0.7(2x + -4) Reorder the terms: 2.8 + 12 + 0.8x = 0.7(2x + -4) Combine like terms: 2.8 + 12 = 14.8 14.8 + 0.8x = 0.7(2x + -4) Reorder the terms: 14.8 + 0.8x = 0.7(-4 + 2x) 14.8 + 0.8x = (-4 * 0.7 + 2x * 0.7) 14.8 + 0.8x = (-2.8 + 1.4x) Solving 14.8 + 0.8x = -2.8 + 1.4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.4x' to each side of the equation. 14.8 + 0.8x + -1.4x = -2.8 + 1.4x + -1.4x Combine like terms: 0.8x + -1.4x = -0.6x 14.8 + -0.6x = -2.8 + 1.4x + -1.4x Combine like terms: 1.4x + -1.4x = 0.0 14.8 + -0.6x = -2.8 + 0.0 14.8 + -0.6x = -2.8 Add '-14.8' to each side of the equation. 14.8 + -14.8 + -0.6x = -2.8 + -14.8 Combine like terms: 14.8 + -14.8 = 0.0 0.0 + -0.6x = -2.8 + -14.8 -0.6x = -2.8 + -14.8 Combine like terms: -2.8 + -14.8 = -17.6 -0.6x = -17.6 Divide each side by '-0.6'. x = 29.33333333 Simplifying x = 29.33333333
| .25+.20x=1.05 | | -100=b+(72) | | ln(x)+ln(x+1)=ln(3)+ln(4) | | 17-(6x-3)=-16 | | 0.87x+3=x-0.9 | | b^2+8b-20= | | 0.19x+1=x-0.8 | | 8(x+4)-3(x-3)=2(x-2)+2(x-2) | | 45+x+44=179x | | x+x-10=98 | | 4(2x-9)-6=4(x-4)+2 | | 3x-9x+57=2x+25 | | 3a^2+4a=4 | | 5.68x+132.7=29.228 | | 140+7x=50+22x | | 6z-4=60 | | 5.68x+132.7=x-29.228 | | 34=6m | | 2(4z-1)=3z+8 | | (2a-3)(4a+6a+9)= | | 17-20a=(-13-5a)4 | | 5x^2+6x+10=0 | | Y^2+y+12=0 | | 4c-5=30.8 | | 10z-5+3z=8-2 | | 3(7x-9)=-15 | | 3x-2x=2x-12 | | 4c+5=30.8 | | -7+x=-15 | | X^2-2xy+2y=0 | | 6y=30y+168 | | 6(x-2)=-6 |