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Simplifying 2(x + -5) + 7 = 4x + -12 Reorder the terms: 2(-5 + x) + 7 = 4x + -12 (-5 * 2 + x * 2) + 7 = 4x + -12 (-10 + 2x) + 7 = 4x + -12 Reorder the terms: -10 + 7 + 2x = 4x + -12 Combine like terms: -10 + 7 = -3 -3 + 2x = 4x + -12 Reorder the terms: -3 + 2x = -12 + 4x Solving -3 + 2x = -12 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. -3 + 2x + -4x = -12 + 4x + -4x Combine like terms: 2x + -4x = -2x -3 + -2x = -12 + 4x + -4x Combine like terms: 4x + -4x = 0 -3 + -2x = -12 + 0 -3 + -2x = -12 Add '3' to each side of the equation. -3 + 3 + -2x = -12 + 3 Combine like terms: -3 + 3 = 0 0 + -2x = -12 + 3 -2x = -12 + 3 Combine like terms: -12 + 3 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5
| 1.5z=12.75 | | Y-8=0.75(x-5) | | r=ln(6x+7y) | | 16x+-7=7+8y | | x-3=4(x+6) | | 8d-9=7d-10d+2 | | 5-6(b+2)=b-14 | | -28=8u+4(u-8) | | -10z+2=2-10z | | 7x+2.5=7x+3.5 | | 800=xy | | -10-7b=-7b | | -1-3t+6=-5-3t | | 3x^2+2=y | | -6r+5r=-r | | -10f-3=-10f | | 8-5p=-5p-1 | | 7+8y=16x-7 | | 20*m=60 | | 3+7y=7y+3 | | x^2-9x+10= | | 3(x-2)=4(x-13) | | f-8=-1.1 | | 7.5x-4.1=6.7-4.5c | | u/5-2.6=3.8 | | 0.5=-60 | | 2+5m=5m | | 6+4(6-4)=210 | | 10s+10=10+3s | | -3.8x+4.1=23.1 | | -3c-5c=-8c | | x-20=100 |