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Simplifying 9r + -1 = 7r + -15 Reorder the terms: -1 + 9r = 7r + -15 Reorder the terms: -1 + 9r = -15 + 7r Solving -1 + 9r = -15 + 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. -1 + 9r + -7r = -15 + 7r + -7r Combine like terms: 9r + -7r = 2r -1 + 2r = -15 + 7r + -7r Combine like terms: 7r + -7r = 0 -1 + 2r = -15 + 0 -1 + 2r = -15 Add '1' to each side of the equation. -1 + 1 + 2r = -15 + 1 Combine like terms: -1 + 1 = 0 0 + 2r = -15 + 1 2r = -15 + 1 Combine like terms: -15 + 1 = -14 2r = -14 Divide each side by '2'. r = -7 Simplifying r = -7
| 15m+13=8m+6 | | 2x+59=113 | | y=22-2(6) | | y=22-2(5) | | -1.5(x-38)+4.7x-1.4x+1.4(x+16.5)= | | y=22-2(4) | | 113=59+3x | | 113=59-3x | | 3x-59=113 | | y=22-2(3) | | (3/8)(9/12)(4/15)(5/6) | | 5x-12=7x-2 | | 2ln(3x+2)=14 | | (-4/3)-(4/3) | | -1.5(x-38)+4.7x=-1.4x+1.4(x+16.5) | | f(x)=2x^2-8x-24 | | 3x+53=113 | | f(5)=-3x-4 | | -4(3+4c)=4 | | X^5+2x^4-x^3+5x^2-20= | | 5m-15-9m=5 | | f(0)=-3x-4 | | (2n-6)(10n-5)=0 | | 2y+7-11y=-2 | | 3x+6=4x-16 | | (-5/9)/3 | | 7.9+4.6z=11.12 | | cos(2x)=-8/9 | | 2d+4=-0+5d | | -9x+5=0 | | (8x+16)-(7x-9)= | | 5.8t-5.1=1.28 |