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Simplifying 4[7x + -5(y + -1)] = 0 Reorder the terms: 4[7x + -5(-1 + y)] = 0 4[7x + (-1 * -5 + y * -5)] = 0 4[7x + (5 + -5y)] = 0 Reorder the terms: 4[5 + 7x + -5y] = 0 [5 * 4 + 7x * 4 + -5y * 4] = 0 [20 + 28x + -20y] = 0 Solving 20 + 28x + -20y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + 28x + -20 + -20y = 0 + -20 Reorder the terms: 20 + -20 + 28x + -20y = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 28x + -20y = 0 + -20 28x + -20y = 0 + -20 Combine like terms: 0 + -20 = -20 28x + -20y = -20 Add '20y' to each side of the equation. 28x + -20y + 20y = -20 + 20y Combine like terms: -20y + 20y = 0 28x + 0 = -20 + 20y 28x = -20 + 20y Divide each side by '28'. x = -0.7142857143 + 0.7142857143y Simplifying x = -0.7142857143 + 0.7142857143y
| M*7=28 | | 3(2-x)-3(-3-10x)= | | 8(8a-b)-5(8b-6a)= | | 6r-5=7-12r | | 4(2x-8)=8(x-4) | | D*10=50 | | 3y+10=7y-6 | | x=5+5 | | 2(5r-5)-3(r-5)= | | 10=5+5 | | -8(x+6)+5(2x+1)= | | -(4y-7)+9= | | -5(6n-6)+2n= | | 52=n | | N+11=25 | | 2.1x-2.3y+4.9x-0.7y= | | 11x^2-x-3=0 | | 3x^2-5x-3-8x+5-x^2= | | 4xy+2z-7xy-7z= | | -3-4z+2-z= | | 81=9z | | 3rs-6r+s-7rs+11r-s= | | 7y^2-9y+8-15y^2-9y+5= | | 7n^2+28n=0 | | 24a=312 | | x^2+6x-8=4+10x | | 7s+11=12+7s | | y=4+x | | 7a^5-9a^3+2a^4= | | 2xy+8yz-7xz-2xy= | | 14x+10y+16+12x-16y-10= | | -0.428(m+5)=3+2m |