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Simplifying 7a + 2b + 2c + 5d = 99 Solving 7a + 2b + 2c + 5d = 99 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2b' to each side of the equation. 7a + 2b + 2c + -2b + 5d = 99 + -2b Reorder the terms: 7a + 2b + -2b + 2c + 5d = 99 + -2b Combine like terms: 2b + -2b = 0 7a + 0 + 2c + 5d = 99 + -2b 7a + 2c + 5d = 99 + -2b Add '-2c' to each side of the equation. 7a + 2c + -2c + 5d = 99 + -2b + -2c Combine like terms: 2c + -2c = 0 7a + 0 + 5d = 99 + -2b + -2c 7a + 5d = 99 + -2b + -2c Add '-5d' to each side of the equation. 7a + 5d + -5d = 99 + -2b + -2c + -5d Combine like terms: 5d + -5d = 0 7a + 0 = 99 + -2b + -2c + -5d 7a = 99 + -2b + -2c + -5d Divide each side by '7'. a = 14.14285714 + -0.2857142857b + -0.2857142857c + -0.7142857143d Simplifying a = 14.14285714 + -0.2857142857b + -0.2857142857c + -0.7142857143d
| 4(-4)-5=8 | | -12/w=-4 | | -16=62+13y | | -14+11m=13m | | 7a+b+0c+3d=100 | | -6(2u-4)+5u=5(u+2) | | 6x-5x+14=14-5 | | 4x+x=2200 | | 2+3c=2c+6+c | | -11b=-9b+8 | | 24x-3=24+3x | | 4(h-6)=3 | | z-7=-11 | | 9x-3+51=180 | | 2.6z-12+3.2x=46 | | 5d-4d=2 | | -7x-2y=17 | | http://homework.cpm.org/cpm-homework/resources/CPM/CC/CCA/Ch5/5-104/97964571268417399373617819802537783878923129310305789413114070431128883639069/104a.png | | 20+12w=11w | | 2x-8(3-x)=5-x | | 15n-15=20n | | -7x-2x=17 | | 8x+13+3x=360 | | 2.6z+12+3.2x=46 | | 8a-11a=18 | | 0=x^2-4x-20 | | 19y-12y=-7 | | 8x+13+3x=180 | | 19-12y=-7 | | y=4.50x | | V-1/1/3=1/4/5 | | 5-r=15 |
