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Simplifying 4(-2r + 4) + -6 = -6r + 18 Reorder the terms: 4(4 + -2r) + -6 = -6r + 18 (4 * 4 + -2r * 4) + -6 = -6r + 18 (16 + -8r) + -6 = -6r + 18 Reorder the terms: 16 + -6 + -8r = -6r + 18 Combine like terms: 16 + -6 = 10 10 + -8r = -6r + 18 Reorder the terms: 10 + -8r = 18 + -6r Solving 10 + -8r = 18 + -6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6r' to each side of the equation. 10 + -8r + 6r = 18 + -6r + 6r Combine like terms: -8r + 6r = -2r 10 + -2r = 18 + -6r + 6r Combine like terms: -6r + 6r = 0 10 + -2r = 18 + 0 10 + -2r = 18 Add '-10' to each side of the equation. 10 + -10 + -2r = 18 + -10 Combine like terms: 10 + -10 = 0 0 + -2r = 18 + -10 -2r = 18 + -10 Combine like terms: 18 + -10 = 8 -2r = 8 Divide each side by '-2'. r = -4 Simplifying r = -4
| 7+4.9t=15+7.6t | | 11=u-10 | | (3x-4)3=6 | | 1/2(8x-12)=26 | | 2x-(x-3)=7 | | 4x+6/2=7 | | 2x-4=4x-5/3 | | (3x)(4x)=375 | | 12.5=2g-3 | | 2x(x-3)=7 | | 50/10 | | -3x+w=2x | | xsquared+4=0 | | 7x-(4x+3)=30 | | 12-(3b-5)=-7 | | 5x+6=12x+6 | | 0.11x+0.06=1.27 | | x^2-x=8 | | 110+30-x=180 | | 3.232dg=g | | 110+30-x=189 | | 3x-3=7+2x | | y=-0.4x(5.3)+5.3 | | C-4=-17/4 | | x+y+50=180 | | x^2-27=334 | | (36/3+20)+64 | | x+30+90=180 | | 2275+x(145.50)=4166.50 | | 5+2(2x-3)=23 | | 4(-8x+5)=.32x-26 | | (36/3-20)+64 |