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Simplifying 7(r + -1) + -3 = 2r + 5 Reorder the terms: 7(-1 + r) + -3 = 2r + 5 (-1 * 7 + r * 7) + -3 = 2r + 5 (-7 + 7r) + -3 = 2r + 5 Reorder the terms: -7 + -3 + 7r = 2r + 5 Combine like terms: -7 + -3 = -10 -10 + 7r = 2r + 5 Reorder the terms: -10 + 7r = 5 + 2r Solving -10 + 7r = 5 + 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. -10 + 7r + -2r = 5 + 2r + -2r Combine like terms: 7r + -2r = 5r -10 + 5r = 5 + 2r + -2r Combine like terms: 2r + -2r = 0 -10 + 5r = 5 + 0 -10 + 5r = 5 Add '10' to each side of the equation. -10 + 10 + 5r = 5 + 10 Combine like terms: -10 + 10 = 0 0 + 5r = 5 + 10 5r = 5 + 10 Combine like terms: 5 + 10 = 15 5r = 15 Divide each side by '5'. r = 3 Simplifying r = 3
| -7(n+7)=4n-16 | | 4x+9-x= | | ln(4-2x)+ln(9-3x)=21n(x+1) | | 2(9x+5)=-26 | | 3z+1/4=4z+7/4 | | 86=-70+13x | | 2b+4028=51514 | | 17+-5= | | -2(4x+2)=12 | | 5x-x+2=2x+2x+2 | | 2(2x+30)+4x=360 | | (2-4i)+(1-4i)= | | 0=x^2-1 | | 11b-2b= | | 13+(-6n)+(-15)+(-5n)= | | 1.1x+-5.4=-10 | | 5/9x=5/3 | | 1/5x+2/5x+3=18 | | (5-8*2)+12=-54 | | 11-2(3m-10)=6(4-m) | | x/-3+2=7 | | 10x=25x-3 | | 2x+3(x+7)=-29 | | -5=m-6+6 | | (12x+16)=10-3(x-2) | | (3+i)(2+2i)= | | (3x/4)+2=4x-1 | | 10x+80+4x=360 | | 3x(4x-10)=-126 | | 2(3w)+2w=80 | | 5(r-3)=2n-6 | | v=Ih |