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4X - 2X - 2 = - 42
preform the indicated variable subtraction ( 4X - 2X )
2X - 2 = - 42
add 2 to each side
2X = - 40
divide both sides integers by 2
X = - 20
-------------check in original equation
4(- 20) - 2(- 20) - 2 = - 42
- 80 + 40 - 2 = - 42
- 42 = - 42
---------------checks
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How do you solve y equals 4x-8 and y equals 2x plus 10?
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many solutions
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-1-2x-4x=19-6x-1 = -19x = 3
How do you solve 146 plus 2x plus 2x plus 26 equals 172?
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How do you solve the following equation for x 2x plus 4-x equals 4x-5?
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How do you solve 2x plus y equals 0 and 4x plus 2y equals 0?
many solutions
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How do you solve 4x plus 3 equals -3 plus 2x plus 14?
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How do you solve 4x-1 equals 6x-15?
4x-1 = 6x-15 4x-6x = 1-15 -2x = -14 x = 7
How do you solve 2x-5 equals 4x-1?
you want to put all of the 'x' on one side and all of the numbers on the other side 2x-5=4x-1 2x-5 (-2x +1) = 4x -1 (-2x + 1) -4 = 2x then divide by 2 x=-2
