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Simplifying 3r + 18 = -1(3 + -3r) + 3r Reorder the terms: 18 + 3r = -1(3 + -3r) + 3r 18 + 3r = (3 * -1 + -3r * -1) + 3r 18 + 3r = (-3 + 3r) + 3r Combine like terms: 3r + 3r = 6r 18 + 3r = -3 + 6r Solving 18 + 3r = -3 + 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. 18 + 3r + -6r = -3 + 6r + -6r Combine like terms: 3r + -6r = -3r 18 + -3r = -3 + 6r + -6r Combine like terms: 6r + -6r = 0 18 + -3r = -3 + 0 18 + -3r = -3 Add '-18' to each side of the equation. 18 + -18 + -3r = -3 + -18 Combine like terms: 18 + -18 = 0 0 + -3r = -3 + -18 -3r = -3 + -18 Combine like terms: -3 + -18 = -21 -3r = -21 Divide each side by '-3'. r = 7 Simplifying r = 7
| 0.16(y-6)+0.04y=0.12y-0.5 | | 45=-3+4a | | 7x-(2x+1)=2x-25 | | 7(r-1)=r+23 | | 7(2+5n)=-168 | | 21p=-205+75+47p | | 5z+3t=10 | | -35=.0035a+70 | | p=1.38+-2.54 | | 6(1+3b)+5b=-22-5b | | 7a+8b-4a-5b= | | b=500(1.012)12t | | 6y-8=2y+2 | | 0.5x+0.15(50)=26.5 | | 36-8v=-6(6v+8) | | 7.5+g=10 | | 7m+8m=-10+5 | | 8x+4x-72=54-6x | | 35-6v=-8v-7(v+4) | | 7c-5c+8=20 | | 2x+(x+36)=180 | | 5.4a+8.2=9.8a-28 | | -15=7p+6 | | t=-109.3+184.9 | | 7-4y=-1 | | 12334x+234455=098765432 | | (5x-1)*2+(7x+1)*2=96 | | B=500(1.010)12t | | 2345678x+123456789=123456789 | | 2-5n=2(-3n-1) | | x-(-41)=-32 | | B=500(1.12)12t |