Mathematics OpenStudy (anonymous):

Four times a certain number is the same as the number increased by 78. Find the number. Parth (parthkohli):

Let x be the number. 4 times the number means 4 * x or 4x The number increased by 78 is x + 78. They are the same. Solve the equation: \(\Huge 4x = x + 78\) Parth (parthkohli):

@megan1124 DON'T ANSWER. I'M WARNING YOU. Parth (parthkohli):

You guys may help her. But don't give the answer. It's something that I plead. OpenStudy (anonymous):

ok :) Parth (parthkohli):

Help her figure out the problem. OpenStudy (anonymous):

i wont she needs to learn to solve it her self Parth (parthkohli):

Okay, so here, you gotta subtract x from both sides. Then you isolate x. OpenStudy (anonymous):

so it would be 3x=78 Parth (parthkohli):

You isolate a given variable by doing the opposite thing. Like if it's x + 78, then you gotta do the inverse operation i.e subtract 78 to isolate x. Parth (parthkohli):

Isolating means making the variable a subject on one side.

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