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Simplifying 9(-5r + 20) + 13r = 10 + -6r + -7r Reorder the terms: 9(20 + -5r) + 13r = 10 + -6r + -7r (20 * 9 + -5r * 9) + 13r = 10 + -6r + -7r (180 + -45r) + 13r = 10 + -6r + -7r Combine like terms: -45r + 13r = -32r 180 + -32r = 10 + -6r + -7r Combine like terms: -6r + -7r = -13r 180 + -32r = 10 + -13r Solving 180 + -32r = 10 + -13r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '13r' to each side of the equation. 180 + -32r + 13r = 10 + -13r + 13r Combine like terms: -32r + 13r = -19r 180 + -19r = 10 + -13r + 13r Combine like terms: -13r + 13r = 0 180 + -19r = 10 + 0 180 + -19r = 10 Add '-180' to each side of the equation. 180 + -180 + -19r = 10 + -180 Combine like terms: 180 + -180 = 0 0 + -19r = 10 + -180 -19r = 10 + -180 Combine like terms: 10 + -180 = -170 -19r = -170 Divide each side by '-19'. r = 8.947368421 Simplifying r = 8.947368421
| 4w-10=10+10w+10 | | 20g-13=3(8q+17) | | c-9=13 | | 90+25= | | 9(-5r+20)+13r=10+6r-7r | | 9q+9(3q-8)=-9(-5q+2) | | 5+19k=-13+17k | | 180=m+25 | | X^3+3t^2+2=0 | | 3(-12-20f)=4(7-19f) | | -18q+8q-20=20-5q | | 3x-4/7=5 | | -2.5v=25 | | 18k+9=-3(-5k+5) | | 7(k+6)=8k | | -3f=10+2f | | 10.7n-19.44-19.9=13.8n+19.25 | | 7(k+60)=8k | | 5/6r=9/10 | | 3x+33=6x | | 2x+4y=59 | | 4(-20s-15)=5(-9s+2) | | -b/2=8 | | 6t+7=10+5t | | 12.1r+16.77=-4.03+9.5r | | 7.9w=-6.6+5.7w | | 6x+11=89 | | -12.8d+19.71=8.5d-12.99+11.4d | | -2p+3=p | | 8g-7=5g-10 | | 3x-15=23 | | 0.03*1400/0.0002 |