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Simplifying 130 = 5(4r + -6) Reorder the terms: 130 = 5(-6 + 4r) 130 = (-6 * 5 + 4r * 5) 130 = (-30 + 20r) Solving 130 = -30 + 20r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-20r' to each side of the equation. 130 + -20r = -30 + 20r + -20r Combine like terms: 20r + -20r = 0 130 + -20r = -30 + 0 130 + -20r = -30 Add '-130' to each side of the equation. 130 + -130 + -20r = -30 + -130 Combine like terms: 130 + -130 = 0 0 + -20r = -30 + -130 -20r = -30 + -130 Combine like terms: -30 + -130 = -160 -20r = -160 Divide each side by '-20'. r = 8 Simplifying r = 8
| y=2x^2+20x+53 | | 44x+.4x+.4x+.85x+.15x+.5x+.5x+18(.5x)+.33(.5x)+.75(.5x)+.70(.5x)+.5(.5x)+.9(.5x)+.75(.5x)+.83(.5x)+.48(.5x)=64739 | | 3k-5=4k | | 1/10x=3/10 | | f(x)=8ln | | 2[x+(21)]=48 | | 8x^2=-9x+10 | | In(2x-5)=3 | | (1)(5)x-7=(1)(3)x-5 | | x^2-3x-1.6=0 | | 3(4+4k)=96 | | 6x+4=-15 | | 3s=120 | | 7x^2+49x+42=0 | | cos(2x)+sinx=0 | | 5x^2-10x+6= | | .5*x*12*5=24.78 | | (1/2)*x*12*5=24.78 | | 50x+13x=64739 | | 6n^2=-2+7n | | z/8-6=8 | | (2x-4)=(6x) | | z=7x+9y | | 4r=120 | | 55=2x+5 | | 3-7y=27 | | 83=24.50+9.50 | | 4s+10=2s*-2 | | -2.3b=16.1 | | 10+2xwhen=-7 | | x^12= | | 6x-9=12x+27 |