Mathematics
sfhoog99
3

What's X? to: 15x - 7x = (-52) - 5x

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(2) Answers
nugget1952

-4 Because 15x-7x= 8x 8x+5x= 13x 13x= -52 -52 / 13= -4 x = -4

Unch448

First, condense what's on the right side of the problem: [latex]15x-7x=-52-5x \\ 8x=-52-5x[/latex] Nest, get all the terms with x on one side. To do this, add 5x to both sides: [latex](8x)+5x=(-52-5x)+5x \\ 13x=-52[/latex] Finally, divide each side by 13 to get x alone: [latex](13x)/13=(-52)/13 \\ x=-4[/latex] The answer is x = -4. To check, simply plug -4 in for x like so: [latex]15(-4)-7(-4)=-52-5(-4) \\ -60--28=-52--20 \\ -60+28=-52+20 \\ -32=-32[/latex] Since we get the same answer on both sides of the equation, we know our answer is correct! Hope this helps!

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