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Simplifying a + -21 + a + -28 = a + 50 Reorder the terms: -21 + -28 + a + a = a + 50 Combine like terms: -21 + -28 = -49 -49 + a + a = a + 50 Combine like terms: a + a = 2a -49 + 2a = a + 50 Reorder the terms: -49 + 2a = 50 + a Solving -49 + 2a = 50 + a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1a' to each side of the equation. -49 + 2a + -1a = 50 + a + -1a Combine like terms: 2a + -1a = 1a -49 + 1a = 50 + a + -1a Combine like terms: a + -1a = 0 -49 + 1a = 50 + 0 -49 + 1a = 50 Add '49' to each side of the equation. -49 + 49 + 1a = 50 + 49 Combine like terms: -49 + 49 = 0 0 + 1a = 50 + 49 1a = 50 + 49 Combine like terms: 50 + 49 = 99 1a = 99 Divide each side by '1'. a = 99 Simplifying a = 99
| (4+2i)*(5-3i)=0 | | t+5+3t-45=t+49 | | 32+30p+42=49p+32 | | 40+30s=33s+36 | | 3.20x/320.4=72 | | 8t=3t+17 | | 8r+8(r+25)=920 | | 5z+13+12z=19z | | 7x^2(x^2-9)=0 | | 45+15s=180 | | y+3y-30=3y | | 84+w-47=180 | | 2z-1+z+22=4z | | 70+z+12=180 | | 18x=29y | | x-2+x=x+34 | | c+6+c-17=c+40 | | a-55=85 | | q-50+q=q+45 | | 55x+70(x-1)=300 | | q+q-50=q+45 | | a-3-14=6 | | a-3-4=6 | | 3z-26+8z-43=8z-11 | | 2a(a+4)-3a(a+2)= | | 45+t+35=3t+27 | | 18q-43+8q-41=16q+5 | | 1/4x=2/3x-10 | | 19y-3+27y=26y+41 | | 13/3÷4/2 | | 8b-50+32=7b+3 | | 2w+9+w+25=5w |