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Simplifying 21 = 7y + 3(y + -5) Reorder the terms: 21 = 7y + 3(-5 + y) 21 = 7y + (-5 * 3 + y * 3) 21 = 7y + (-15 + 3y) Reorder the terms: 21 = -15 + 7y + 3y Combine like terms: 7y + 3y = 10y 21 = -15 + 10y Solving 21 = -15 + 10y Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-10y' to each side of the equation. 21 + -10y = -15 + 10y + -10y Combine like terms: 10y + -10y = 0 21 + -10y = -15 + 0 21 + -10y = -15 Add '-21' to each side of the equation. 21 + -21 + -10y = -15 + -21 Combine like terms: 21 + -21 = 0 0 + -10y = -15 + -21 -10y = -15 + -21 Combine like terms: -15 + -21 = -36 -10y = -36 Divide each side by '-10'. y = 3.6 Simplifying y = 3.6
| (0.8/0.4)*(6/0.3) | | 4/49*6 | | y=5(2a+1)-4(a-2) | | 6.6(x-3)=-.4x+36.2 | | -8(a+1)= | | 10x1-1/2x | | -w+160=72 | | X+36-6=90 | | 3(1-4s)=-28 | | X+0.8=4.3x | | 100(25x)=700 | | 4y-5x-12=0 | | x+x+5+x-7=180 | | 1.8*C+32= | | 14x+4+80=180 | | m+4=1-2 | | 3x+19+x-22+x-17= | | 3/4x-7=(x/9)(5) | | 0=20x^3+60x^2-80 | | 3/7x-7=(x/9)(5) | | 5x+5=5(2x) | | N-5/9=1/3 | | 3y+y+2y= | | 18x-5=3x-12 | | 1.8xc+32= | | 5(2a+1)-4(a-2)=b(a+4)+16 | | x/b=b/c | | Y=.20x+75 | | 2k+5=0.5(1-k) | | 3x+19+x-22+x-17=180 | | f(t)=4(1.25)t+3 | | -2m+8=-10 |