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swat32
4 years ago
7

Solve for x. −7.8 (x + 6.5)= −25.74

Mathematics
2 answers:
Alexxx [7]4 years ago
7 0
Simplify both sides of the equation. (Distribute)
<span><span><span><span>(−7.8)</span>(x)</span>+<span><span>(−7.8)</span>(6.5)</span></span>=−25.74 </span>  <span><span><span><span>−7.8x </span>+ </span>−50.7</span>= −25.74 ------------->  </span>−7.8x − 50.7= −25.74
<span>Add 50.7 to both sides.
</span><span><span><span>−7.8x </span>− 50.7 </span>+ 50.7 </span>=  <span>−25.74 + 50.7 ---------------------> </span><span>−7.8x </span>= <span>24.96
</span><span>Divide both sides by -7.8.
</span><span><span>−7.8x /</span>−7.8   </span>=   <span>24.96/<span>−<span>7.8

</span></span></span><span>
X= </span><span>−3.2   :D</span><span>



</span>
adelina 88 [10]4 years ago
3 0
Divide both sides by -7.8
x+6.5=3.3
minus 6.5 from both sides
x=-3.2
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