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Simplifying -3(r + -4) + 7 = -15 Reorder the terms: -3(-4 + r) + 7 = -15 (-4 * -3 + r * -3) + 7 = -15 (12 + -3r) + 7 = -15 Reorder the terms: 12 + 7 + -3r = -15 Combine like terms: 12 + 7 = 19 19 + -3r = -15 Solving 19 + -3r = -15 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + -3r = -15 + -19 Combine like terms: 19 + -19 = 0 0 + -3r = -15 + -19 -3r = -15 + -19 Combine like terms: -15 + -19 = -34 -3r = -34 Divide each side by '-3'. r = 11.33333333 Simplifying r = 11.33333333
| C=3.55+0.25x | | Y-.75=500 | | gd+1=15-d | | 2x-9x+8=-6 | | (2X+27)+(2X-11)=100 | | x^4+2x^3-1024=0 | | -5.1n-3.94=14.98-4n | | Y-.6Y=140 | | (x+4)squared-25=0 | | 72-50y^2=0 | | y=25x+175 | | 72+2v^2= | | 2/9=k+3/2 | | 10+0.25x=20 | | (x+4)-25=0 | | -0.48+8.2c=-0.5c-2+8.6c | | -47=-3x-8 | | 4k+8k=2(10+8k)-12(k-9) | | 8x^4-11x^2+1=0 | | 4+3(c-12)= | | .8888x=-16 | | .8888x=-16 | | 72u^2+24uv+2v^2= | | 72u^2+24uv+2v^2= | | 8x^4-11x^2+1=0 | | 72u^2+24uv+2v^2= | | 72u^2+24uv+2v^2= | | 4k+8k=2(10+8k)-12(k-9) | | x^3+17=115 | | 72u^2+24uv+2v^2= | | 4+3(c-12)= | | 40x^3+5x^2+15x= |