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Simplifying 3a + 7 = -3.6(a + -1) Reorder the terms: 7 + 3a = -3.6(a + -1) Reorder the terms: 7 + 3a = -3.6(-1 + a) 7 + 3a = (-1 * -3.6 + a * -3.6) 7 + 3a = (3.6 + -3.6a) Solving 7 + 3a = 3.6 + -3.6a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '3.6a' to each side of the equation. 7 + 3a + 3.6a = 3.6 + -3.6a + 3.6a Combine like terms: 3a + 3.6a = 6.6a 7 + 6.6a = 3.6 + -3.6a + 3.6a Combine like terms: -3.6a + 3.6a = 0.0 7 + 6.6a = 3.6 + 0.0 7 + 6.6a = 3.6 Add '-7' to each side of the equation. 7 + -7 + 6.6a = 3.6 + -7 Combine like terms: 7 + -7 = 0 0 + 6.6a = 3.6 + -7 6.6a = 3.6 + -7 Combine like terms: 3.6 + -7 = -3.4 6.6a = -3.4 Divide each side by '6.6'. a = -0.5151515152 Simplifying a = -0.5151515152
| -120+40= | | 6+n=12 | | m-5=-10 | | -6n+7(2n-8)-3n= | | x+2.2=65 | | 6.4(10x)=2 | | x+65=2.2 | | z+(z-6)-2=-10 | | 8(3d-8)= | | 5(7c+3)= | | 2n-3(4n+5)=-6(n-3)-1 | | 9(b-3)= | | -(-5-6x)=4(5x+3) | | 8x+9=103 | | 4(a+4)= | | -8x-5+3x=7+4x-9 | | -8+y=-1 | | 8x+5+4=103 | | -10-y=-2 | | 0.6h-9=6-0.6h | | 0.2f+0.6(f+29)=-8+0.4f | | 3.2-4d=2.3d+3 | | 100-5x=13x-25 | | x+10+20=90 | | 14-9x=94-37x | | 14-9x=94-37 | | -145-10x=10x+15 | | 3x+13=-13-10x | | 142-4x=6x+12 | | 5-6x=13-8x | | 61-4x=7x+17 | | 10x+20=90 |